#include <bits/stdc++.h> using namespace std; int findMax(int arr[3][4], int rows, int cols); int main() { int matrix[3][4]; for (int i = 0; i < 3; i++) { for (int j = 0; j < 4; j++) { cin >> matrix[i][j]; } } cout << findMax(matrix, 3, 4) << endl; return 0; } int findMax(int arr[3][4], int rows, int cols) { int maxVal = arr[0][0]; for (int i = 0; i < rows; i++) { for (int j = 0; j < cols; j++) { if (arr[i][j] > maxVal) { maxVal = arr[i][j]; } } } return maxVal; }