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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. {
  7. 	int x[2][2]={{1,2},{3,4}};
  8. 	int y[2][2]={{1,2},{3,4}};
  9. 	int ans[2][2]={0};
  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. {
  16. 	for(int i=0;i<2;i++)
  17. 	{
  18. 		for(int j=0;j<2;j++)
  19. 		{
  20. 			for(int k=0;k<2;k++)
  21. 			{
  22. 				ans[i][j]+=x[i][k]*y[k][j];
  23. 			}
  24. 			printf("%d ",ans[i][j]);
  25. 		}
  26. 		printf("\n");
  27. 	}
  28. }
  29.  
Success #stdin #stdout 0s 5304KB
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Standard input is empty
stdout
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7 10 
15 22
https://ideone.com/2cL7rm
3当日課題の2
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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