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  1. #include <stdio.h>
  2.  
  3. void array_mul(int (*x)[2], int (*y)[2], int (*ans)[2]);
  4.  
  5. int main(void) {
  6. 	int x[2][2] = { {1,2}, {3,4} };
  7. 	int y[2][2] = { {1,2}, {3,4} };
  8. 	int ans[2][2] = { 0 };
  9.  
  10. 	array_mul(x, y, ans);
  11. 	return 0;
  12. }
  13.  
  14. void array_mul(int (*x)[2], int (*y)[2], int (*ans)[2]) {
  15. 	for(int i=0;i<2;i++){
  16. 		for(int j=0;j<2;j++){
  17. 			ans[i][j] = x[0][j] * y[i][0] + x[1][j] * y[i][1];
  18. 			printf("%d\n", ans[i][j]);
  19. 		}
  20. 	}
  21. }
  22.  
Success #stdin #stdout 0s 5288KB
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https://ideone.com/COiMHM
language:
C99 (gcc 8.3)
created:
9 days ago
visibility:
public

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