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 : The 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 :
C++14
// C++ program to find maximum// element of each row in a matrix#include <bits/stdc++.h>using namespace std;const int N = 4;// Print array elementvoid printArray(vector<int>& result, int no_of_rows){ for (int i = 0; i < no_of_rows; i++) { cout << result[i] << " "; }}// Function to get max elementvoid maxelement(int no_of_rows, vector<vector<int> >& arr){ int i = 0; // Initialize max to 0 at beginning // of finding max element of each row int max = 0; vector<int> result(no_of_rows); while (i < no_of_rows) { for (int j = 0; j < N; j++) { if (arr[i][j] > max) { max = arr[i][j]; } } result[i] = max; max = 0; i++; } printArray(result, no_of_rows);}// Driver codeint main(){ vector<vector<int> > arr = { { 3, 4, 1, 8 }, { 1, 4, 9, 11 }, { 76, 34, 21, 1 }, { 2, 1, 4, 5 } }; // Calling the function maxelement(4, arr); return 0;}// This code is contributed by Rajput-Ji |
Output
8 11 76 5
Time Complexity: O(M*N), where M and N are no of rows and column of given matrix
Auxiliary Space: O(M)
Please refer complete article on Find maximum element of each row in a matrix for more details!
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