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  1. #include <stdio.h>
  2.  
  3.  
  4. #define SIZE 2
  5.  
  6.  
  7. void array_mul(int (*x)[SIZE], int (*y)[SIZE], int (*ans)[SIZE]){
  8.  
  9.  
  10.     for (int i=0;i<SIZE;i++){
  11.  
  12.         for (int j=0;j<SIZE;j++){
  13.  
  14.             ans[i][j] = 0; 
  15.  
  16.             for (int k = 0; k < SIZE; k++){
  17.                 ans[i][j]+=x[i][k]*y[k][j];
  18.             }
  19.         }
  20.     }
  21.  
  22.  
  23.  
  24.     for (int i = 0; i < SIZE; i++) {
  25.         for (int j = 0; j < SIZE; j++) {
  26.             printf("%d ", ans[i][j]);
  27.         }
  28.         printf("\n");
  29.     }
  30. }
  31.  
  32. int main() {
  33.  
  34.     int array_x[SIZE][SIZE] = {
  35.         {1, 2},
  36.         {3, 4}
  37.     };
  38.  
  39.     int array_y[SIZE][SIZE]={
  40.         {1, 2},
  41.         {3, 4}
  42.     };
  43.  
  44.  
  45.     int array_ans[SIZE][SIZE];
  46.  
  47.     array_mul(array_x, array_y, array_ans);
  48.  
  49.  
  50.     return 0;
  51. }
  52.  
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/gDUUrs
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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