Given a matrix, the task is to find the maximum element of each row.
Examples:
Input : [1, 2, 3]
[1, 4, 9]
[76, 34, 21]
Output :
3
9
76
Input : [1, 2, 3, 21]
[12, 1, 65, 9]
[1, 56, 34, 2]
Output :
21
65
56
Approach : Approach is very simple. The idea is to run the loop for no_of_rows. Check each element inside the row and find for the maximum element. Finally, print the element.
Below is the implementation :
Javascript
<script>// javascript program to find maximum // element of each row in a matrix// Function to get max elementfunction maxelement(no_of_rows, arr){ var i = 0; // Initialize max to 0 at beginning // of finding max element of each row var max = 0; var result = Array.from({length: no_of_rows}, (_, i) => 0); while (i < no_of_rows) { for (var j = 0; j < arr[i].length; j++) { if (arr[i][j] > max) { max = arr[i][j]; } } result[i] = max; max = 0; i++; } printArray(result);}// Print array elementfunction printArray(result){ for (var i = 0; i < result.length; i++) { document.write(result[i]+"<br>"); }}// Driver code var arr = [[3, 4, 1, 8], [ 1, 4, 9, 11], [ 76, 34, 21, 1], [ 2, 1, 4, 5] ]; // Calling the function maxelement(4, arr); // This code is contributed by 29AjayKumar </script> |
Output :
8 11 76 5
Time Complexity: O(N*M), where N is the number of rows and M is the number of columns in the given matrix.
Space Complexity: O(N), where N is the number of rows in the given matrix.
Please refer complete article on Find maximum element of each row in a matrix for more details!
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