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  1. #include <stdio.h>
  2.  
  3.  
  4. void array_mul(int (*x)[2],int (*y)[2],int (*ans)[2]){
  5.     for(int i = 0; i<2; i++){
  6.         for(int j=0; j<2;j++){
  7.             for(int k=0; k<2;k++){
  8.                 ans[i][j] += x[i][k] * y[k][j];
  9.  
  10.             }
  11.             printf("\n");
  12.         }
  13.     }
  14. }
  15. int main(){
  16.     int ans[2][2] = {{0,0},{0,0}};
  17.     int x[2][2] = {
  18.         {1,2},
  19.         {3,4}
  20.     };
  21.     int y[2][2] = {
  22.         {1,2},
  23.         {3,4}
  24.     };
  25.     array_mul(x,y,ans);
  26.     for(int i = 0; i<2; i++){
  27.         for(int j=0; j<2;j++){
  28.             printf("%d " ,ans[i][j]);
  29.         }
  30.         printf("\n");
  31.     }
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0.01s 5292KB
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https://ideone.com/uYp4WM
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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