//Q75. Add two matrices.
#include <stdio.h>
int main() {
    int r,c,a[10][10],b[10][10],sum[10][10],i,j;
    for(i=0;i<r;i++)
        for(j=0;j<c;j++)
    for(i=0;i<r;i++)
        for(j=0;j<c;j++)
    for(i=0;i<r;i++){
        for(j=0;j<c;j++){
            sum[i][j]=a[i][j]+b[i][j];
        }
    }
}
 
 
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