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#include <iostream>
using namespace std;
const int COLUMN_SIZE = 4;
int sum(const int a[] [COLUMN_SIZE], int rowSize)
{
int total = 0;
for (int row = 0; row < rowSize; row++)
{
for (int column = 0; column < COLUMN_SIZE; column++)
{
total += a[row][column];
}
}
return total;
}
int main()
{
int m[4][4]=
{
{1,2,3,4},
{5,6,7,8},
{9,10,11,12},
{13,14,15,16}
};
cout<< "Sum of the matrix"<< sum(m,4) << endl;
return 0;
}
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