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  1. #include <stdio.h>
  2.  
  3. void array_mul(int (*x)[2],int (*y)[2],int (*ans)[2]){
  4.     for(int i=0;i<2;i++){
  5.         for(int j=0;j<2;j++){
  6.         ans[i][j]=0;
  7.             for(int k=0;k<2;k++){
  8.             ans[i][j]+=x[i][k]*y[k][j];
  9. }
  10. }
  11. }
  12.  
  13.     for(int i=0;i<2;i++){
  14.         for(int j=0;j<2;j++){
  15.         printf("ans[%d][%d]=%d\n",i,j,ans[i][j]);}
  16. }
  17. }
  18. int main(void)
  19. {
  20.     int x[2][2]={{1,2},{3,4}};
  21.     int y[2][2]={{1,2},{3,4}};
  22.     int ans[2][2];
  23.     array_mul(x,y,ans);
  24.  
  25.     return 0;
  26. }
  27.  
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
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Standard input is empty
stdout
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ans[0][0]=7
ans[0][1]=10
ans[1][0]=15
ans[1][1]=22
https://ideone.com/kS6ESL
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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