#include <iostream> using namespace std; int main() { int arr[4][3] = { 22,66,44, 77,33,88, 25,45,65, 11,66,99 }; int sum = 0; for(int i = 0; i < 4; i++) { for(int j = 0; j < 3; j++) { sum += arr[i][j]; ...