{"id":15102,"date":"2021-10-01T10:30:33","date_gmt":"2021-10-01T05:00:33","guid":{"rendered":"https:\/\/python-programs.com\/?p=15102"},"modified":"2021-11-22T18:33:28","modified_gmt":"2021-11-22T13:03:28","slug":"python-program-to-print-all-happy-numbers-within-a-given-range","status":"publish","type":"post","link":"https:\/\/python-programs.com\/python-program-to-print-all-happy-numbers-within-a-given-range\/","title":{"rendered":"Python Program to Print all Happy Numbers within a given Range"},"content":{"rendered":"<p>In this article, we will learn how to print happy numbers within a specific range in Python. You will learn what a happy number is, how to check whether a given number is a happy number, and how to write Python code that outputs all the happy numbers within the user-specified range.<\/p>\n<p><strong>Happy Number :<\/strong><\/p>\n<p>If the repeating sum of the digits squared equals one, the number is said to be a Happy Number. If we continue this method and get outcome 1, we have a happy number. If the outcome is 4, it enters an infinite loop and is not a happy number. Let\u2019s look at an example to help you grasp it better.<\/p>\n<p>Given Number = 320<br \/>\nSquare of the digits\u00a0 = 3<sup>2\u00a0<\/sup>+ 2<sup>2<\/sup>\u00a0+ 0<sup>2\u00a0<\/sup>= 13<br \/>\nSquare of the digits\u00a0 = 1<sup>2<\/sup>\u00a0+ 3<sup>2<\/sup>\u00a0= 10<br \/>\nSquare of the digits\u00a0 = 1<sup>2<\/sup>\u00a0+ 0<sup>2<\/sup>\u00a0= 1<\/p>\n<p>Other Examples of happy numbers\u00a0 =7, 28, 100 etc.<\/p>\n<p><strong>Examples:<\/strong><\/p>\n<p><strong>Example1:<\/strong><\/p>\n<p><strong>Input:<\/strong><\/p>\n<pre>Given upper limit range =19\r\nGiven lower limit range =145<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">The happy numbers in the given range 19 and 145 are:\r\n19 23 28 31 32 44 49 68 70 79 82 86 91 94 97 100 103 109 129 130 133 139<\/pre>\n<p><strong>Example2:<\/strong><\/p>\n<p><strong>Input:<\/strong><\/p>\n<pre>Given upper limit range =333\r\nGiven lower limit range =444<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre>The happy numbers in the given range 333 and 444 are:\r\n338 356 362 365 367 368 376 379 383 386 391 392 397 404 409 440<\/pre>\n<h2>Program to Print all Happy numbers within a given range in Python<\/h2>\n<p>Below are the ways to print all the happy numbers in the given range.<\/p>\n<ul>\n<li><a href=\"#Using_For_loop(Static_Input)\">Using For loop(Static Input)<\/a><\/li>\n<li><a href=\"#Using_For_loop(User_Input)\">Using For loop(User Input)<\/a><\/li>\n<\/ul>\n<p>Don&#8217;t stop learning now. Get hold of all the important Java fundamentals with the <a href=\"https:\/\/python-programs.com\/python-programming-examples-with-output\/\">Simple java program example<\/a> guide and practice well.<\/p>\n<h3 id=\"Using_For_loop(Static_Input)\">Method #1: Using For Loop (Static Input)<\/h3>\n<p><strong>Approach:<\/strong><\/p>\n<ul>\n<li>Create a function checkhapppynumb() which accepts the number as an argument and returns true if it is happy number else returns False.<\/li>\n<li>Give the lower limit range as static input and store it in a variable.<\/li>\n<li>Give the upper limit range as static input and store it in another variable.<\/li>\n<li>Create a function\u00a0<strong>digitSquareSum()<\/strong>\u00a0that accepts the given number as an argument and returns the sum of squares of digits.<\/li>\n<li>Inside the\u00a0<strong>digitSquareSum()\u00a0<\/strong>function.<\/li>\n<li>Convert the given argument to string using the\u00a0<strong>str()<\/strong>\u00a0function.<\/li>\n<li>Convert the given argument into list of digits using list(),map(),int() functions.<\/li>\n<li>Store it in a variable.<\/li>\n<li>Take a variable sumsquaredigits and initialize its value to 0.<\/li>\n<li>Loop in this digits list using For loop.<\/li>\n<li>Increment the value of sumsquaredigits by the square of the digit(iterator value).<\/li>\n<li>Return the sumsquaredigits value.<\/li>\n<li>Loop from lower limit range to upper limit range using For loop.<\/li>\n<li>Inside the for loop pass the iterator value to checkhapppynumb() function.<\/li>\n<li>Inside the checkhapppynumb() function.<\/li>\n<li>Take a variable reslt and initialize its value to the given argument.<\/li>\n<li>Loop till the reslt is not equal to 1 or 4 using while loop.<\/li>\n<li>Inside the loop pass the reslt value to\u00a0<strong>digitSquareSum()\u00a0<\/strong>and store it in the same variable reslt.<\/li>\n<li>After the end of the while loop, Check whether reslt value is 1 or not using the If statement.<\/li>\n<li>If it is true then the given number is a happy number so return True<\/li>\n<li>Else it is not a happy number so return False.<\/li>\n<li>If it returns true then print the iterator value with space.<\/li>\n<li>The Exit of the Program.<\/li>\n<\/ul>\n<p><strong>Below is the implementation:<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Create a function digitSquareSum() that accepts the given number\r\n# as an argument and returns the sum of squares of digits.\r\n\r\n\r\ndef digitSquareSum(resltnumber):\r\n    # Inside the digitSquareSum() function.\r\n    # Convert the given argument to string using the str() function.\r\n    strnumbe = str(resltnumber)\r\n    # Convert the given argument into list of digits using list(),map(),int() functions.\r\n    # Store it in a variable.\r\n    numbrlistdigits = list(map(int, strnumbe))\r\n    # Take a variable sumsquaredigits and initialize its value to 0.\r\n    sumsquaredigits = 0\r\n    # Loop in this digits list using For loop.\r\n    for digitvalu in numbrlistdigits:\r\n        # Increment the value of sumsquaredigits by the square\r\n        # of the digit(iterator value).\r\n        sumsquaredigits = sumsquaredigits+(digitvalu**2)\r\n    # Return the sumsquaredigits value\r\n    return sumsquaredigits\r\n\r\n# Create a function checkhapppynumb() which accepts the number as an argument\r\n# and returns true if it is happy number else returns False.\r\n\r\n\r\ndef checkhapppynumb(numb):\r\n    # Take a variable rest and initialize its value to the given argument.\r\n    rest = numb\r\n    # Loop till the rest is not equal to 1 or 4 using while loop.\r\n    while(rest != 1 and rest != 4):\r\n        # Inside the loop pass the reslt value to digitSquareSum()\r\n        # and store it in the same variable reslt.\r\n        rest = digitSquareSum(rest)\r\n    # After the end of the while loop,\r\n    # Check whether rest value is 1 or not using the If statement.\r\n    if(rest == 1):\r\n        # If it is true then the given number is a happy number so return True\r\n        return True\r\n    else:\r\n        # Else it is not a happy number so return False.\r\n        return False\r\n\r\n\r\n# Give the lower limit range as static input and store it in a variable.\r\nlowlimrange = 19\r\n# Give the upper limit range as static input and store it in another variable.\r\nupplimrange = 145\r\nprint('The happy numbers in the given range',\r\n      lowlimrange, 'and', upplimrange, 'are:')\r\n# Loop from lower limit range to upper limit range using For loop.\r\nfor l in range(lowlimrange, upplimrange+1):\r\n        # IInside the for loop pass the iterator value to checkhapppynumb() function.\r\n    if(checkhapppynumb(l)):\r\n        # If it returns true then print the iterator value.\r\n        print(l, end=' ')\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">The happy numbers in the given range 19 and 145 are:\r\n19 23 28 31 32 44 49 68 70 79 82 86 91 94 97 100 103 109 129 130 133 139<\/pre>\n<h3 id=\"Using_For_loop(User_Input)\">Method #2: Using For Loop (User Input)<\/h3>\n<p><strong>Approach:<\/strong><\/p>\n<ul>\n<li>Create a function checkhapppynumb() which accepts the number as an argument and returns true if it is happy number else returns False.<\/li>\n<li>Give the lower limit range and upper limit range as user input using map(),int(),split() functions.<\/li>\n<li>Store them in two separate variables.<\/li>\n<li>Create a function\u00a0<strong>digitSquareSum()<\/strong>\u00a0that accepts the given number as an argument and returns the sum of squares of digits.<\/li>\n<li>Inside the\u00a0<strong>digitSquareSum()\u00a0<\/strong>function.<\/li>\n<li>Convert the given argument to string using the\u00a0<strong>str()<\/strong>\u00a0function.<\/li>\n<li>Convert the given argument into list of digits using list(),map(),int() functions.<\/li>\n<li>Store it in a variable.<\/li>\n<li>Take a variable sumsquaredigits and initialize its value to 0.<\/li>\n<li>Loop in this digits list using For loop.<\/li>\n<li>Increment the value of sumsquaredigits by the square of the digit(iterator value).<\/li>\n<li>Return the sumsquaredigits value.<\/li>\n<li>Loop from lower limit range to upper limit range using For loop.<\/li>\n<li>Inside the for loop pass the iterator value to checkhapppynumb() function.<\/li>\n<li>Inside the checkhapppynumb() function.<\/li>\n<li>Take a variable reslt and initialize its value to the given argument.<\/li>\n<li>Loop till the reslt is not equal to 1 or 4 using while loop.<\/li>\n<li>Inside the loop pass the reslt value to\u00a0<strong>digitSquareSum()\u00a0<\/strong>and store it in the same variable reslt.<\/li>\n<li>After the end of the while loop, Check whether reslt value is 1 or not using the If statement.<\/li>\n<li>If it is true then the given number is a happy number so return True<\/li>\n<li>Else it is not a happy number so return False.<\/li>\n<li>If it returns true then print the iterator value.<\/li>\n<li>The Exit of the Program.<\/li>\n<\/ul>\n<p><strong>Below is the implementation:<br \/>\n<\/strong><\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"python\"># Create a function digitSquareSum() that accepts the given number\r\n# as an argument and returns the sum of squares of digits.\r\n\r\n\r\ndef digitSquareSum(resltnumber):\r\n    # Inside the digitSquareSum() function.\r\n    # Convert the given argument to string using the str() function.\r\n    strnumbe = str(resltnumber)\r\n    # Convert the given argument into list of digits using list(),map(),int() functions.\r\n    # Store it in a variable.\r\n    numbrlistdigits = list(map(int, strnumbe))\r\n    # Take a variable sumsquaredigits and initialize its value to 0.\r\n    sumsquaredigits = 0\r\n    # Loop in this digits list using For loop.\r\n    for digitvalu in numbrlistdigits:\r\n        # Increment the value of sumsquaredigits by the square\r\n        # of the digit(iterator value).\r\n        sumsquaredigits = sumsquaredigits+(digitvalu**2)\r\n    # Return the sumsquaredigits value\r\n    return sumsquaredigits\r\n\r\n# Create a function checkhapppynumb() which accepts the number as an argument\r\n# and returns true if it is happy number else returns False.\r\n\r\n\r\ndef checkhapppynumb(numb):\r\n    # Take a variable rest and initialize its value to the given argument.\r\n    rest = numb\r\n    # Loop till the rest is not equal to 1 or 4 using while loop.\r\n    while(rest != 1 and rest != 4):\r\n        # Inside the loop pass the reslt value to digitSquareSum()\r\n        # and store it in the same variable reslt.\r\n        rest = digitSquareSum(rest)\r\n    # After the end of the while loop,\r\n    # Check whether rest value is 1 or not using the If statement.\r\n    if(rest == 1):\r\n        # If it is true then the given number is a happy number so return True\r\n        return True\r\n    else:\r\n        # Else it is not a happy number so return False.\r\n        return False\r\n\r\n\r\n# Give the lower limit range and upper limit range as\r\n# user input using map(),int(),split() functions.\r\n# Store them in two separate variables.\r\nlowlimrange, upplimrange = map(int, input(\r\n    'Enter lower limit range and upper limit range separate bt spaces = ').split())\r\nprint('The Harshad numbers in the given range',\r\n      lowlimrange, 'and', upplimrange, 'are:')\r\nprint('The happy numbers in the given range',\r\n      lowlimrange, 'and', upplimrange, 'are:')\r\n# Loop from lower limit range to upper limit range using For loop.\r\nfor l in range(lowlimrange, upplimrange+1):\r\n        # IInside the for loop pass the iterator value to checkhapppynumb() function.\r\n    if(checkhapppynumb(l)):\r\n        # If it returns true then print the iterator value.\r\n        print(l, end=' ')\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre>Enter lower limit range and upper limit range separate bt spaces = 333 444\r\nThe Harshad numbers in the given range 333 and 444 are:\r\nThe happy numbers in the given range 333 and 444 are:\r\n338 356 362 365 367 368 376 379 383 386 391 392 397 404 409 440<\/pre>\n<p><strong>Related Programs<\/strong>:<\/p>\n<ul>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-print-all-the-prime-numbers-within-a-given-range\/\">python program to print all the prime numbers within a given range<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-print-all-numbers-in-a-range-divisible-by-a-given-number\/\">python program to print all numbers in a range divisible by a given number<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-print-odd-numbers-within-a-given-range\/\">python program to print odd numbers within a given range<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-print-all-harshad-numbers-within-given-range\/\">python program to print all harshad numbers within given range<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-print-all-co-binary-palindromic-numbers-in-a-range\/\">python program to print all co binary palindromic numbers in a range<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-find-those-numbers-which-are-divisible-by-7-and-multiple-of-5-in-a-given-range-of-numbers\/\">python program to find those numbers which are divisible by 7 and multiple of 5 in a given range of numbers<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-print-numbers-in-a-range-1upper-without-using-any-loops-or-by-using-recursion\/\">python program to print numbers in a range 1upper without using any loops or by using recursion<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In this article, we will learn how to print happy numbers within a specific range in Python. You will learn what a happy number is, how to check whether a given number is a happy number, and how to write Python code that outputs all the happy numbers within the user-specified range. Happy Number : &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/python-programs.com\/python-program-to-print-all-happy-numbers-within-a-given-range\/\"> <span class=\"screen-reader-text\">Python Program to Print all Happy Numbers within a given Range<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":7,"featured_media":15124,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[5],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python Program to Print all Happy Numbers within a given Range - Python Programs<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/python-programs.com\/python-program-to-print-all-happy-numbers-within-a-given-range\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Program to Print all Happy Numbers within a given Range - Python Programs\" \/>\n<meta property=\"og:description\" content=\"In this article, we will learn how to print happy numbers within a specific range in Python. 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You will learn what a happy number is, how to check whether a given number is a happy number, and how to write Python code that outputs all the happy numbers within the user-specified range. 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