#include <stdio.h>
void array_mul(int (*x)[2],int (*y)[2],int (*ans)[2]);
void disp(int (*ans)[2]);
int main(void) {
int x[2][2] = {{1,2},{3,4}};
int y[2][2] = {{1,2},{3,4}};
int ans[2][2] = {0};
array_mul(x,y,ans);
for(int i=0;i<2;i++){
for(int j=0;j<2;j++){
}
}
return 0;
}
void array_mul(int (*x)[2],int (*y)[2],int (*ans)[2]){
for(int i=0;i<2;i++){
for(int j=0;j<2;j++){
for(int k=0;k<2;k++){
ans[i][j] += x[i][k]*y[k][j];
}
}
}
}
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