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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<=1;i++){
  5. 		for(int j=0;j<=1;j++){
  6. 			ans[i][j]=0;
  7. 			for(int k=0;k<=1;k++){
  8. 				ans[i][j]=ans[i][j]+x[i][k]*y[k][j];
  9. 			}
  10. 		}
  11. 	}
  12.  
  13. 			printf("%3d   %3d\n",ans[0][0],ans[0][1]);
  14. 			printf("%3d   %3d\n",ans[1][0],ans[1][1]);
  15. }
  16.  
  17. int main(void) {
  18. 	int x[2][2]={{1,2},{3,4}},y[2][2]={{1,2},{3,4}},ans[2][2]={0};
  19. 	array_mul(x,y,ans);
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5312KB
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Standard input is empty
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  7    10
 15    22
https://ideone.com/PityXH
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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