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  1. #include <stdio.h>
  2. int ans[2][2];
  3. void array_mul(int (*x)[2],int (*y)[2],int (*ans)[2] );
  4.  
  5. int main(void) {
  6. 	int i,j;
  7. 	int x[2][2]={{1,2},{3,4}};
  8. 	int y[2][2]={{1,2},{3,4}};
  9. 	array_mul(x,y,ans);
  10. 	for(i=0;i<2;i++){
  11. 		for(j=0;j<2;j++){
  12. 			printf("%d ",*(ans[i]+j));
  13. 		}
  14. 		printf("\n");
  15. 	}
  16. 	return 0;
  17. }
  18.  
  19. void array_mul(int (*x)[2],int (*y)[2],int (*ans)[2] ){
  20. 	int i,j,k;
  21. 	for(i=0;i<2;i++){
  22. 		for(j=0;j<2;j++){
  23. 			for(k=0;k<2;k++){
  24. 		*(ans[i]+j)=*(x[i]+k)**(y[k]+j)+*(ans[i]+j);
  25. 			}
  26. 		}
  27. 	}
  28. }
  29.  
Success #stdin #stdout 0s 5316KB
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https://ideone.com/V90apy
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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