Can anyone tells me what's wrong to calculate multi of 2 matrices.??

Question

#include <iostream>
using namespace std;

int main() {
int i,j;
int A[4][3]{
{1,2,1},
{2,1,0},
{0,0,0},
{5,0,8}
};
int B[3][3]{
{3,5,1},
{2,3,4},
{2,6,7}
};
for(i=0;i<4;i++){
for(j=0;j<3;j++){

int C[i][j];
C[i][j]=(A[i][j])*(B[i][j])+(A[i][j+1])*(B[i+1][j])+(A[i][j+2])*(B[i+2][j]);
cout <<C[i][j]<<"\t";
}
cout<<endl;}
return 0;
}

Answer 1

Use C[i][j] = A[i][j] * B[i][j]; in the loop.

Answer 2

How??