{"id":207,"date":"2025-05-29T13:05:16","date_gmt":"2025-05-29T07:35:16","guid":{"rendered":"https:\/\/codeanddebug.in\/blog\/?p=207"},"modified":"2025-07-07T19:55:55","modified_gmt":"2025-07-07T14:25:55","slug":"python-program-print-1-to-n-without-loops","status":"publish","type":"post","link":"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/","title":{"rendered":"Python Program to Print from 1 to N Without Loops"},"content":{"rendered":"\n<p>Hi everyone, in this article we&#8217;ll guide you through the Python program to print from 1 to N without loops [<strong><a href=\"https:\/\/www.geeksforgeeks.org\/problems\/print-1-to-n-without-using-loops-1587115620\/1\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\"><span style=\"text-decoration: underline;\">Problem Link<\/span><\/mark><\/a><\/strong>]. Comprehensively with its examples, 2 approaches, their codes &amp; explanation. So let&#8217;s begin.<\/p>\n\n\n<div style=\"max-width: -moz-fit-content; \" class=\"wp-block-ub-table-of-contents-block ub_table-of-contents ub_table-of-contents-collapsed\" id=\"ub_table-of-contents-14f4aa42-dc51-4fe4-9e79-81b96488f507\" data-linktodivider=\"false\" data-showtext=\"show\" data-hidetext=\"hide\" data-scrolltype=\"auto\" data-enablesmoothscroll=\"true\" data-initiallyhideonmobile=\"false\" data-initiallyshow=\"false\"><div class=\"ub_table-of-contents-header-container\" style=\"\">\n\t\t\t<div class=\"ub_table-of-contents-header\" style=\"text-align: left; \">\n\t\t\t\t<div class=\"ub_table-of-contents-title\">Content:<\/div>\n\t\t\t\t<div class=\"ub_table-of-contents-header-toggle\">\n\t\t\t<div class=\"ub_table-of-contents-toggle\" style=\"\">\n\t\t\t\u00a0[<a class=\"ub_table-of-contents-toggle-link\" href=\"#\" style=\"\">show<\/a>]\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div><div class=\"ub_table-of-contents-extra-container\" style=\"\">\n\t\t\t<div class=\"ub_table-of-contents-container ub_table-of-contents-1-column ub-hide\">\n\t\t\t\t<ul style=\"\"><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#0-examples-of-python-program-to-print-from-1-to-n-without-loops\" style=\"\">Examples of Python Program to Print from 1 to N Without Loops<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#1-1-recursion-solution-without-backtracking\" style=\"\">1. Recursion Solution (Without Backtracking)<\/a><ul><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#2-key-steps-in-the-approach\" style=\"\">Key Steps in the Approach<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#3-code\" style=\"\">Code<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#4-code-explanation\" style=\"\">Code Explanation<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#5-dry-run-\" style=\"\">Dry Run<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#6-complexity-analysis\" style=\"\">Complexity Analysis<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#7-advantages-of-using-recursion\" style=\"\">Advantages of Using Recursion<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#8-disadvantages\" style=\"\">Disadvantages<\/a><\/li><\/ul><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#9-2-recursion-solution-with-backtracking\" style=\"\">2. Recursion Solution (With Backtracking)<\/a><ul><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#10-key-steps-in-the-approach-\" style=\"\">Key Steps in the Approach<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#11-code\" style=\"\">Code<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#12-code-explanation\" style=\"\">Code Explanation<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#13-dry-run\" style=\"\">Dry Run<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#14-complexity-analysis\" style=\"\">Complexity Analysis<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#15-advantages-of-using-backtracking\" style=\"\">Advantages of Using Backtracking<\/a><\/li><li style=\"\"><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-1-to-n-without-loops\/#16-disadvantages\" style=\"\">Disadvantages<\/a><\/li><\/ul><\/li><\/ul>\n\t\t\t<\/div>\n\t\t<\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"0-examples-of-python-program-to-print-from-1-to-n-without-loops\">Examples of Python Program to Print from 1 to N Without Loops<\/h2>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"Example 1:\n\n  Input: n = 10\n  Output: 1 2 3 4 5 6 7 8 9 10\n\nExample 2:\n\n  Input: n = 5\n  Output: 1 2 3 4 5\n\nExample 3:\n\n  Input: n = 1\n  Output: 1\" style=\"color:#D4D4D4;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D4D4D4\">Example <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\">:<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">  Input: n = <\/span><span style=\"color: #B5CEA8\">10<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">  Output: <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">3<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">4<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">5<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">6<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">7<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">8<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">9<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">10<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">Example <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\">:<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">  Input: n = <\/span><span style=\"color: #B5CEA8\">5<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">  Output: <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">2<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">3<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">4<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #B5CEA8\">5<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">Example <\/span><span style=\"color: #B5CEA8\">3<\/span><span style=\"color: #D4D4D4\">:<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">  Input: n = <\/span><span style=\"color: #B5CEA8\">1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">  Output: <\/span><span style=\"color: #B5CEA8\">1<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"Constraints: 1 &lt;= n &lt;= 1000\" style=\"color:#D4D4D4;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D4D4D4\">Constraints: <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\"> &lt;= n &lt;= <\/span><span style=\"color: #B5CEA8\">1000<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>Also read about the Python Program to <strong><a href=\"https:\/\/codeanddebug.in\/blog\/python-program-print-divisors-factors-integer\/\" target=\"_blank\" rel=\"noreferrer noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\"><span style=\"text-decoration: underline;\">Print Divisors\/Factors of an Integer<\/span><\/mark><\/a><\/strong><\/em>.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-1-recursion-solution-without-backtracking\">1. Recursion Solution (Without Backtracking)<\/h2>\n\n\n\n<p>This solution utilizes recursion to print numbers from 1 to N without using loops. The function relies on the recursive nature of function calls to iterate over the range of numbers.<\/p>\n\n\n\n<p>Instead of iterating explicitly with a loop, the recursion takes care of the repetition by calling the same function with updated parameters.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-key-steps-in-the-approach\">Key Steps in the Approach<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Base Case:<\/strong>\n<ul class=\"wp-block-list\">\n<li>The recursion stops when the current value of <strong><em>&#8220;i<\/em>&#8220;<\/strong> exceeds <strong><em>&#8220;n<\/em>&#8220;<\/strong><\/li>\n\n\n\n<li>This ensures that the function terminates and avoids infinite recursion<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Recursive Call:<\/strong>\n<ul class=\"wp-block-list\">\n<li>In each call, the current value of <strong><em>&#8220;i<\/em>&#8220;<\/strong> is printed<\/li>\n\n\n\n<li>The function is then called recursively with <strong><em>i+1<\/em><\/strong>, effectively moving to the next number<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Wrapper Function:<\/strong>\n<ul class=\"wp-block-list\">\n<li>A wrapper function (printNos) initializes the recursion by calling the recursive function (func) with the starting value <strong><em>i=1<\/em><\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-code\">Code<\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"class Solution:\n    def func(self, i, n):\n        if i &gt; n:  # Base case: stop recursion when i exceeds n\n            return\n        print(i, end=&quot; &quot;)  # Print the current number\n        self.func(i + 1, n)  # Recursive call with the next number\n\n    def printNos(self, n):\n        self.func(1, n)  # Start recursion from 1 to n\" style=\"color:#D4D4D4;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">class<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">Solution<\/span><span style=\"color: #D4D4D4\">:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">def<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">func<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">self<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #9CDCFE\">i<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #9CDCFE\">n<\/span><span style=\"color: #D4D4D4\">):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #C586C0\">if<\/span><span style=\"color: #D4D4D4\"> i &gt; n:  <\/span><span style=\"color: #6A9955\"># Base case: stop recursion when i exceeds n<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">            <\/span><span style=\"color: #C586C0\">return<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #DCDCAA\">print<\/span><span style=\"color: #D4D4D4\">(i, <\/span><span style=\"color: #9CDCFE\">end<\/span><span style=\"color: #D4D4D4\">=<\/span><span style=\"color: #CE9178\">&quot; &quot;<\/span><span style=\"color: #D4D4D4\">)  <\/span><span style=\"color: #6A9955\"># Print the current number<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #569CD6\">self<\/span><span style=\"color: #D4D4D4\">.func(i + <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\">, n)  <\/span><span style=\"color: #6A9955\"># Recursive call with the next number<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">def<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">printNos<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">self<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #9CDCFE\">n<\/span><span style=\"color: #D4D4D4\">):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #569CD6\">self<\/span><span style=\"color: #D4D4D4\">.func(<\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\">, n)  <\/span><span style=\"color: #6A9955\"># Start recursion from 1 to n<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-code-explanation\">Code Explanation<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Recursive Function (<\/strong><strong>func<\/strong><strong>):<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Parameters:<\/strong>\n<ul class=\"wp-block-list\">\n<li>i: The current number to be printed<\/li>\n\n\n\n<li>n: The maximum number to print<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Logic:<\/strong>\n<ul class=\"wp-block-list\">\n<li>If <strong>i&gt;n<\/strong>, the function terminates (base case)<\/li>\n\n\n\n<li>Otherwise, it prints <strong>i<\/strong> and recursively calls itself with <strong>i+1<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Wrapper Function (<\/strong><strong>printNos<\/strong><strong>):<\/strong>\n<ul class=\"wp-block-list\">\n<li>Initializes the recursive process by calling func(1, n)<\/li>\n\n\n\n<li>Starts printing from <strong>1 up to n<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5-dry-run-\">Dry Run<img decoding=\"async\" style=\"\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXesMz3ove4kxTXx0jRLJ2RVBjvYM8er4UIvfm8eeKvm5a-0DQBw5osssYGku96YYjrKn9Ga86zFOFDHcNLwuGgtXVjNGOqxH3SlYFD5Uen0j0XXY11kKLJjkrGeYN7FkQXJr7b1_g?key=9cgcCZTJ1m3y-w1UhxmQ1bLa\" alt=\"Dry Run of the Recursion Solution (Without Backtracking)\"><\/h3>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"6-complexity-analysis\">Complexity Analysis<\/h3>\n\n\n\n<p><strong>Time Complexity:<\/strong> The function makes<strong> <\/strong>&#8220;n&#8221; recursive calls, where each call performs a constant amount of work (printing and updating parameters).<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Time Complexity:<\/strong> O(n)<\/li>\n<\/ul>\n\n\n\n<p><strong>Space Complexity:<\/strong> Each recursive call adds a frame to the call stack. For &#8220;n&#8221; recursive calls, the space complexity is proportional to &#8220;n&#8221;.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Space Complexity:<\/strong> O(n)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"7-advantages-of-using-recursion\">Advantages of Using Recursion<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Eliminates Loops:<\/strong> This approach adheres to the problem&#8217;s requirement of avoiding loops.<\/li>\n\n\n\n<li><strong>Simplicity:<\/strong> The recursive function mirrors the iterative logic, making it easy to understand and implement.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"8-disadvantages\">Disadvantages<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stack Usage:<\/strong> Recursive solutions consume more memory due to stack usage, making them less efficient for very large <strong>&#8220;n&#8221;.<\/strong><\/li>\n\n\n\n<li><strong>Risk of Stack Overflow:<\/strong> For extremely large <strong>&#8220;n&#8221;<\/strong>, the solution may exceed the recursion depth limit, causing a stack overflow.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>Learn <strong><a href=\"https:\/\/codeanddebugacademy.com\/extraction-of-digits-in-python\/\" target=\"_blank\" rel=\"noopener\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\"><span style=\"text-decoration: underline;\">Extraction of Digits in Python<\/span><\/mark><\/a><\/strong> | Explained Step-by-Step.<\/em><\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"9-2-recursion-solution-with-backtracking\">2. Recursion Solution (With Backtracking)<\/h2>\n\n\n\n<p>This solution uses <strong>backtracking<\/strong> to print numbers from <strong>1<\/strong> to <strong>N<\/strong> without using loops. Unlike the standard recursive approach, where numbers are printed during the forward recursion phase, this method delays printing until the recursion starts &#8220;backtracking.&#8221;<\/p>\n\n\n\n<p>This technique ensures numbers are printed in the correct order while adhering to the problem&#8217;s constraints.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"10-key-steps-in-the-approach-\"><strong>Key Steps in the Approach<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Recursive Functionality<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Start with the largest number <strong>(N)<\/strong><\/li>\n\n\n\n<li>Recursively call the function with the next smaller number <strong>(i\u22121)<\/strong><\/li>\n\n\n\n<li>When the base case is reached, the recursion stops<\/li>\n\n\n\n<li>Print numbers while backtracking, ensuring they are printed in ascending order<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Base Case<\/strong>:\n<ul class=\"wp-block-list\">\n<li>The recursion stops when <strong>i&lt;1<\/strong>, ensuring no further function calls are made<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Wrapper Function<\/strong>:\n<ul class=\"wp-block-list\">\n<li>A wrapper function (printNos) initializes the process by calling the recursive function (func) with <strong>i=N<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"11-code\">Code<\/h3>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#1E1E1E\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"class Solution:\n    def func(self, i, n):\n        if i &lt; 1:  # Base case: stop recursion when i is less than 1\n            return\n        self.func(i - 1, n)  # Recursive call with the next smaller number\n        print(i, end=&quot; &quot;)  # Print the number during backtracking\n\n    def printNos(self, n):\n        self.func(n, n)  # Start recursion with n\" style=\"color:#D4D4D4;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6\">class<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #4EC9B0\">Solution<\/span><span style=\"color: #D4D4D4\">:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">def<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">func<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">self<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #9CDCFE\">i<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #9CDCFE\">n<\/span><span style=\"color: #D4D4D4\">):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #C586C0\">if<\/span><span style=\"color: #D4D4D4\"> i &lt; <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\">:  <\/span><span style=\"color: #6A9955\"># Base case: stop recursion when i is less than 1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">            <\/span><span style=\"color: #C586C0\">return<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #569CD6\">self<\/span><span style=\"color: #D4D4D4\">.func(i - <\/span><span style=\"color: #B5CEA8\">1<\/span><span style=\"color: #D4D4D4\">, n)  <\/span><span style=\"color: #6A9955\"># Recursive call with the next smaller number<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #DCDCAA\">print<\/span><span style=\"color: #D4D4D4\">(i, <\/span><span style=\"color: #9CDCFE\">end<\/span><span style=\"color: #D4D4D4\">=<\/span><span style=\"color: #CE9178\">&quot; &quot;<\/span><span style=\"color: #D4D4D4\">)  <\/span><span style=\"color: #6A9955\"># Print the number during backtracking<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">    <\/span><span style=\"color: #569CD6\">def<\/span><span style=\"color: #D4D4D4\"> <\/span><span style=\"color: #DCDCAA\">printNos<\/span><span style=\"color: #D4D4D4\">(<\/span><span style=\"color: #9CDCFE\">self<\/span><span style=\"color: #D4D4D4\">, <\/span><span style=\"color: #9CDCFE\">n<\/span><span style=\"color: #D4D4D4\">):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">        <\/span><span style=\"color: #569CD6\">self<\/span><span style=\"color: #D4D4D4\">.func(n, n)  <\/span><span style=\"color: #6A9955\"># Start recursion with n<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"12-code-explanation\">Code Explanation<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Recursive Function (<\/strong><strong>func<\/strong><strong>):<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Parameters:<\/strong>\n<ul class=\"wp-block-list\">\n<li>i: The current number being processed<\/li>\n\n\n\n<li>n: The original upper limit of the range (not used actively in the logic but passed for consistency)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Logic:<\/strong>\n<ul class=\"wp-block-list\">\n<li>If <strong>i&lt;1<\/strong>, the function terminates (base case)<\/li>\n\n\n\n<li>Otherwise, the function calls itself with <strong>i\u22121<\/strong> (moves toward the base case)<\/li>\n\n\n\n<li>After the recursive call, the current number iii is printed during the backtracking phase<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Wrapper Function (<\/strong><strong>printNos<\/strong><strong>):<\/strong>\n<ul class=\"wp-block-list\">\n<li>Initializes the recursion by calling func(n, n), starting the process with <strong>i=N<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"13-dry-run\">Dry Run<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion-1024x576.png\" alt=\"Dry Run of the Recursion Solution (With Backtracking)\" class=\"wp-image-208\" srcset=\"https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion-1024x576.png 1024w, https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion-300x169.png 300w, https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion-768x432.png 768w, https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion-1536x864.png 1536w, https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion-150x84.png 150w, https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion-450x253.png 450w, https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion-1200x675.png 1200w, https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/dry-run-recursion.png 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"14-complexity-analysis\">Complexity Analysis<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Time Complexity<\/strong>: The function makes <strong>&#8220;n&#8221;<\/strong> recursive calls, where each call performs a constant amount of work (printing or making a recursive call).\n<ul class=\"wp-block-list\">\n<li><strong>Time Complexity:<\/strong> O(n)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Space Complexity<\/strong>: Each recursive call adds a frame to the call stack. For <strong>&#8220;n&#8221;<\/strong> recursive calls, the space complexity is proportional to <strong>&#8220;n&#8221;<\/strong>.\n<ul class=\"wp-block-list\">\n<li><strong>Space Complexity:<\/strong> O(n)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"15-advantages-of-using-backtracking\">Advantages of Using Backtracking<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Order Control:<\/strong> By printing during backtracking, the order of output <strong>(1 to n)<\/strong> is maintained naturally.<\/li>\n\n\n\n<li><strong>Adheres to Constraints:<\/strong> The solution avoids loops while ensuring correctness.<\/li>\n\n\n\n<li><strong>Logical Clarity:<\/strong> Separating the recursive phase (function calls) from the backtracking phase (printing) improves code readability.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"16-disadvantages\">Disadvantages<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stack Usage:<\/strong> Similar to standard recursion, this method uses additional memory for the call stack, making it less efficient for very large <strong>&#8220;n&#8221;.<\/strong><\/li>\n\n\n\n<li><strong>Risk of Stack Overflow:<\/strong> For extremely large <strong>&#8220;n&#8221;<\/strong>, exceeding the recursion depth limit may lead to stack overflow errors.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/codeanddebug.in\/course\/master-dsa-with-leetcode\" target=\"_blank\" rel=\"noreferrer noopener\">Join our FREE python with dsa course<\/a><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><em>For any changes to the document, kindly email at <a href=\"mailto:code@codeanddebug.in\">code@codeanddebug.in<\/a> or contact us at <a href=\"tel:+91-9712928220\">+91-9712928220<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi everyone, in this article we&#8217;ll guide you through the Python program to print from 1 to N without loops [Problem Link]. Comprehensively with its examples, 2 approaches, their codes &amp; explanation. So let&#8217;s begin. Examples of Python Program to Print from 1 to N Without Loops Also read about the Python Program to Print<\/p>\n","protected":false},"author":1,"featured_media":209,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[8,11],"class_list":{"0":"post-207","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-data-structures-and-algorithm","8":"category-beginner","9":"tag-easy","10":"tag-recursion"},"featured_image_src":"https:\/\/codeanddebug.in\/blog\/wp-content\/uploads\/2025\/05\/printfrom-1-to-N-without-loops-featured-image.png","author_info":{"display_name":"codeanddebug","author_link":"https:\/\/codeanddebug.in\/blog\/author\/codeanddebug\/"},"_links":{"self":[{"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/posts\/207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/comments?post=207"}],"version-history":[{"count":3,"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/posts\/207\/revisions"}],"predecessor-version":[{"id":545,"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/posts\/207\/revisions\/545"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/media\/209"}],"wp:attachment":[{"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/media?parent=207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/categories?post=207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codeanddebug.in\/blog\/wp-json\/wp\/v2\/tags?post=207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}