// Online C++ compiler to run C++ program online
#include <stdio.h>
int total=0;
/*void sum_array(int arr[], int array_size)
{
for (int i=0; i <array_size; i++)
{
total = total + arr[i];
}
}
{
*x = *x + *y;
printf("%d\n",*x);
}
*/
void sum_matrix(int mat[3][4])
{
for (int i=0; i<3; i++)
{
for (int j=0; j
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