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 :
Java
// Java program to find maximum // element of each row in a matrixpublic class GFG{ // Function to get max element public static void maxelement(int no_of_rows, int[][] arr) { int i = 0; // Initialize max to 0 at beginning // of finding max element of each row int max = 0; int[] result = new int[no_of_rows]; while (i < no_of_rows) { for (int 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 element private static void printArray(int[] result) { for (int i =0; i<result.length;i++) { System.out.println(result[i]); } } // Driver code public static void main(String[] args) { int[][] arr = new int[][] { {3, 4, 1, 8}, {1, 4, 9, 11}, {76, 34, 21, 1}, {2, 1, 4, 5} }; // Calling the function maxelement(4, arr); }} |
Output
8 11 76 5
Time Complexity: O(R*C) where R and C are numbers of rows and columns of a given matrix respectively.
Auxiliary Space: O(R), extra space for array result[]
Please refer complete article on Find maximum element of each row in a matrix for more details!
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