{"id":22057,"date":"2021-09-22T17:11:56","date_gmt":"2021-09-22T11:41:56","guid":{"rendered":"https:\/\/python-programs.com\/?p=22057"},"modified":"2021-11-22T18:36:15","modified_gmt":"2021-11-22T13:06:15","slug":"python-program-to-check-if-a-pair-with-given-product-exists-in-a-matrix","status":"publish","type":"post","link":"https:\/\/python-programs.com\/python-program-to-check-if-a-pair-with-given-product-exists-in-a-matrix\/","title":{"rendered":"Python Program to Check if a Pair with Given Product Exists in a Matrix"},"content":{"rendered":"<p>In the previous article, we have discussed <a href=\"https:\/\/python-programs.com\/python-program-to-count-frequency-of-k-in-a-matrix-of-size-n-where-matrix-i-j-ij\/\">Python Program to Count Frequency of k in a Matrix of Size n Where Matrix(i, j) = i+j<\/a><\/p>\n<p>Given a matrix and the product value k, the task is to check whether the pair with the given product value exists in the given matrix or not.<\/p>\n<p><strong>What is a matrix:<\/strong><\/p>\n<p>A matrix is a rectangular sequence of numbers divided into columns and rows. A matrix element or entry is a number that appears in a matrix.<\/p>\n<p><strong>Example:<\/strong><\/p>\n<p><img loading=\"lazy\" class=\"size-full wp-image-7021 aligncenter\" src=\"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/05\/matrix.jpg\" alt=\"\" width=\"561\" height=\"426\" srcset=\"https:\/\/python-programs.com\/wp-content\/uploads\/2021\/05\/matrix.jpg 561w, https:\/\/python-programs.com\/wp-content\/uploads\/2021\/05\/matrix-300x228.jpg 300w\" sizes=\"(max-width: 561px) 100vw, 561px\" \/><\/p>\n<p>Above is the matrix which contains 5 rows and 4 columns and having elements from 1 to 20.<\/p>\n<p>In this order, the dimensions of a matrix indicate the number of rows and columns.<\/p>\n<p>Here as there are 5 rows and 4 columns it is called a 5*4 matrix.<\/p>\n<p><strong>Examples:<\/strong><\/p>\n<p><strong>Example1:<\/strong><\/p>\n<p><strong>Input:<\/strong><\/p>\n<pre>Given Matrix :\u00a0\r\n1 5 4\r\n8 6 1\r\n6 2 4\r\n\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">Yes, the pair with the given product value k exists in the given matrix<\/pre>\n<p><strong>Example2:<\/strong><\/p>\n<p><strong>Input:<\/strong><\/p>\n<pre>Given Matrix :\u00a0\r\n5 2 1\r\n4 6 3\r\n1 7 1<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre>No, the pair with the given product value k does not exist in the given matrix<\/pre>\n<h2>Program to Check if a Pair with Given Product Exists in a Matrix in Python<\/h2>\n<p>Below are the ways to check whether the pair with the given product value exists in the given matrix or not.<\/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<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>Give the matrix as static input and store it in a variable.<\/li>\n<li>Calculate the number of rows of the given matrix by calculating the length of the nested list using the len() function and store it in a variable mtrxrows.<\/li>\n<li>Calculate the number of columns of the given matrix by calculating the length of the first list in the nested list using the len() function and store it in a variable mtrxcolums.<\/li>\n<li>Give the k value as static input and store it in another variable.<\/li>\n<li>Create a function to say <strong>CheckPairwith_prodctK()<\/strong> which takes the given matrix and given product k value as the arguments and returns true or false.<\/li>\n<li>Inside the function, take a new empty list and store it in another variable.<\/li>\n<li>Loop till the given number of rows using the For loop.<\/li>\n<li><span class=\"enlighter-c0\">Inside the For loop, Iterate till the given number of columns using another Nested <\/span>For loop(Inner For loop).<\/li>\n<li>Check if the value of given k modulus mtrx[n][m] is equal to 0 and given k value divided by mtrx[n[m] is present in the above declared new list using the if conditional statement.<\/li>\n<li>If it is true, then return true.<\/li>\n<li>Else append mtrx[n][m] to the above new list using the append() function.<\/li>\n<li>Pass the given matrix and the given k value as the arguments to the <strong>CheckPairwith_prodctK<\/strong><strong>()<\/strong> function and check if it returns true or false using the if conditional statement.<\/li>\n<li>If it is true, then print &#8220;Yes, the pair with the given product value k exists in the given matrix&#8221;.<\/li>\n<li>Else print &#8220;No, the pair with the given product value k does not exist in the given matrix&#8221;.<\/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 to say CheckPairwith_prodctK() which takes the given matrix and\r\n# given product k value as the arguments and returns true or false.\r\n\r\n\r\ndef CheckPairwith_prodctK(mtrx, gvn_k_val):\r\n        # Inside the function, take a new empty list and store it in another variable.\r\n    new_lst = []\r\n    # Loop till the given number of rows using the For loop.\r\n    for n in range(mtrxrows):\r\n      # Inside the For loop, Iterate till the given number of columns using another Nested\r\n          # For loop(Inner For loop).\r\n        for m in range(mtrxcols):\r\n          # Check if the value of given k modulus mtrx[n][m] is equal to 0 and given k\r\n          # value divided by mtrx[n[m] is present in the above declared new list using\r\n          # the if # conditional statement.\r\n            if ((gvn_k_val % mtrx[n][m] == 0) and\r\n                    (gvn_k_val \/\/ mtrx[n][m]) in new_lst):\r\n                # If it is true, then return true.\r\n                return True\r\n                # Else append mtrx[n][m] to the above new list using the append() function.\r\n            else:\r\n                new_lst.append(mtrx[n][m])\r\n\r\n\r\n# Give the matrix as static input and store it in a variable.\r\nmtrx = [[1, 5, 4], [8, 6, 1], [6, 2, 4]]\r\n# Calculate the number of rows of the given matrix by\r\n# calculating the length of the nested list using the len() function\r\n# and store it in a variable mtrxrows.\r\nmtrxrows = len(mtrx)\r\n# Calculate the number of columns of the given matrix by\r\n# calculating the length of the first list in the nested list\r\n# using the len() function and store it in a variable mtrxcols.\r\nmtrxcols = len(mtrx[0])\r\n# Give the k value as static input and store it in another variable.\r\ngvn_k_val = 30\r\n# Pass the given matrix and the given k value as the arguments to the\r\n# CheckPairwith_prodctK() function and check if it returns true or false using\r\n# the if conditional statement.\r\nif (CheckPairwith_prodctK(mtrx, gvn_k_val)):\r\n        # If it is true, then print \"Yes, the pair with the given product value k exists in\r\n        # the given matrix\".\r\n    print(\"Yes, the pair with the given product value k exists in the given matrix\")\r\n\r\nelse:\r\n    # Else print \"No, the pair with the given product value k does not exist in the given\r\n        # matrix\".\r\n    print(\"No, the pair with the given product value k does not exist in the given matrix\")\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre id=\"codeOutputPre\">Yes, the pair with the given product value k exists in the given matrix<\/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>Give the number of rows of the matrix as user input using the int(input()) function and store it in a variable.<\/li>\n<li>Give the number of columns of the matrix as user input using the int(input()) function and store it in another variable.<\/li>\n<li>Take a list and initialize it with an empty value using [] or list() to say\u00a0<strong>gvnmatrix<\/strong>.<\/li>\n<li>Loop till the given number of rows using the For loop<\/li>\n<li>Inside the For loop, Give all the row elements of the given Matrix as a list using the list(),map(),int(),split() functions and store it in a variable.<\/li>\n<li>Add the above row elements list to\u00a0<strong>gvnmatrix<\/strong>\u00a0using the append() function.<\/li>\n<li>Give the k value as user input using the int(input()) function and store it in another variable.<\/li>\n<li>Create a function to say <strong>CheckPairwith_prodctK()<\/strong> which takes the given matrix and given product k value as the arguments and returns true or false.<\/li>\n<li>Inside the function, take a new empty list and store it in another variable.<\/li>\n<li>Loop till the given number of rows using the For loop.<\/li>\n<li><span class=\"enlighter-c0\">Inside the For loop, Iterate till the given number of columns using another Nested <\/span>For loop(Inner For loop).<\/li>\n<li>Check if the value of given k modulus mtrx[n][m] is equal to 0 and given k value divided by mtrx[n[m] is present in the above declared new list using the if conditional statement.<\/li>\n<li>If it is true, then return true.<\/li>\n<li>Else append mtrx[n][m] to the above new list using the append() function.<\/li>\n<li>Pass the given matrix and the given k value as the arguments to the <strong>CheckPairwith_prodctK<\/strong><strong>()<\/strong> function and check if it returns true or false using the if conditional statement.<\/li>\n<li>If it is true, then print &#8220;Yes, the pair with the given product value k exists in the given matrix&#8221;.<\/li>\n<li>Else print &#8220;No, the pair with the given product value k does not exist in the given matrix&#8221;.<\/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 to say CheckPairwith_prodctK() which takes the given matrix and\r\n# given product k value as the arguments and returns true or false.\r\n\r\n\r\ndef CheckPairwith_prodctK(mtrx, gvn_k_val):\r\n        # Inside the function, take a new empty list and store it in another variable.\r\n    new_lst = []\r\n    # Loop till the given number of rows using the For loop.\r\n    for n in range(mtrxrows):\r\n      # Inside the For loop, Iterate till the given number of columns using another Nested\r\n          # For loop(Inner For loop).\r\n        for m in range(mtrxcols):\r\n          # Check if the value of given k modulus mtrx[n][m] is equal to 0 and given k\r\n          # value divided by mtrx[n[m] is present in the above declared new list using\r\n          # the if # conditional statement.\r\n            if ((gvn_k_val % mtrx[n][m] == 0) and\r\n                    (gvn_k_val \/\/ mtrx[n][m]) in new_lst):\r\n                # If it is true, then return true.\r\n                return True\r\n                # Else append mtrx[n][m] to the above new list using the append() function.\r\n            else:\r\n                new_lst.append(mtrx[n][m])\r\n\r\n\r\n# Give the number of rows of the matrix as user input using the int(input()) function\r\n# and store it in a variable.\r\nmtrxrows = int(input('Enter some random number of rows of the matrix = '))\r\n# Give the number of columns of the matrix as user input using the int(input()) function\r\n# and store it in another variable.\r\nmtrxcols = int(input('Enter some random number of columns of the matrix = '))\r\n# Take a list and initialize it with an empty value using [] or list() to say gvnmatrix.\r\nmtrx = []\r\n# Loop till the given number of rows using the For loop\r\nfor n in range(mtrxrows):\r\n    # Inside the For loop, Give all the row elements of the given Matrix as a list using\r\n    # the list(),map(),int(),split() functions and store it in a variable.\r\n    l = list(map(int, input(\r\n        'Enter {'+str(mtrxcols)+'} elements of row {'+str(n+1)+'} separated by spaces = ').split()))\r\n    # Add the above row elements list to gvnmatrix using the append() function.\r\n    mtrx.append(l)\r\n    \r\n# Give the k value as user input using the int(input()) function and\r\n# store it in another variable.\r\ngvn_k_val = int(input(\"Enter some random number = \"))\r\n# Pass the given matrix and the given k value as the arguments to the\r\n# CheckPairwith_prodctK() function and check if it returns true or false using\r\n# the if conditional statement.\r\nif (CheckPairwith_prodctK(mtrx, gvn_k_val)):\r\n        # If it is true, then print \"Yes, the pair with the given product value k exists in\r\n        # the given matrix\".\r\n    print(\"Yes, the pair with the given product value k exists in the given matrix\")\r\n\r\nelse:\r\n    # Else print \"No, the pair with the given product value k does not exist in the given\r\n        # matrix\".\r\n    print(\"No, the pair with the given product value k does not exist in the given matrix\")\r\n<\/pre>\n<p><strong>Output:<\/strong><\/p>\n<pre>Enter some random number of rows of the matrix = 3\r\nEnter some random number of columns of the matrix = 3\r\nEnter {3} elements of row {1} separated by spaces = 5 2 1\r\nEnter {3} elements of row {2} separated by spaces = 4 6 3\r\nEnter {3} elements of row {3} separated by spaces = 1 7 1\r\nEnter some random number = 50\r\nNo, the pair with the given product value k does not exist in the given matrix<\/pre>\n<p>Enhance your coding skills with our list of <a href=\"https:\/\/python-programs.com\/python-programming-examples-with-output\/\">Python Basic Programs<\/a> provided and become a pro in the general-purpose programming language Python in no time.<\/p>\n<ul>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-swap-upper-diagonal-elements-with-lower-diagonal-elements-of-matrix\/\">Python Program to Swap Upper Diagonal Elements with Lower Diagonal Elements of Matrix.<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-swap-major-and-minor-diagonals-of-a-square-matrix\/\">Python Program to Swap Major and Minor Diagonals of a Square Matrix<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-for-squares-of-matrix-diagonal-elements\/\">Python Program for Squares of Matrix Diagonal Elements<\/a><\/li>\n<li><a href=\"https:\/\/python-programs.com\/python-program-to-interchange-elements-of-first-and-last-rows-in-matrix\/\">Python Program to Interchange Elements of First and Last Rows in Matrix<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In the previous article, we have discussed Python Program to Count Frequency of k in a Matrix of Size n Where Matrix(i, j) = i+j Given a matrix and the product value k, the task is to check whether the pair with the given product value exists in the given matrix or not. What is &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/python-programs.com\/python-program-to-check-if-a-pair-with-given-product-exists-in-a-matrix\/\"> <span class=\"screen-reader-text\">Python Program to Check if a Pair with Given Product Exists in a Matrix<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":7,"featured_media":22067,"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 Check if a Pair with Given Product Exists in a Matrix - 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-check-if-a-pair-with-given-product-exists-in-a-matrix\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Program to Check if a Pair with Given Product Exists in a Matrix - Python Programs\" \/>\n<meta property=\"og:description\" content=\"In the previous article, we have discussed Python Program to Count Frequency of k in a Matrix of Size n Where Matrix(i, j) = i+j Given a matrix and the product value k, the task is to check whether the pair with the given product value exists in the given matrix or not. 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