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  1. #include <stdio.h>
  2.  
  3. int goban(int n,int m){
  4. 	if(n==0||m==0){
  5. 		return 1;
  6. 	}else{
  7. 		return goban(n-1,m)+goban(n,m-1);
  8. 	}
  9. }
  10.  
  11. int main(void){
  12. 	int x,y;
  13. 	scanf("%d %d",&x,&y);
  14. 	if(x<0||y<0){
  15. 		printf("書き直し\n");
  16. 	}else{
  17. 	printf("%d\n",goban(x,y));		
  18. 	}
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0.01s 5324KB
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https://ideone.com/lv9arK
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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