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  1. #include <stdio.h>
  2.  
  3. int goal(int x, int y){
  4. 	static int memo[99][99];
  5.  
  6. 	if(y==0 || x==y)
  7. 		return 1;
  8. 	else {
  9. 		if(memo[x][y]!=0)
  10. 			return memo[x][y];
  11. 		else
  12. 			return memo[x][y]=goal(x-1,y-1)+goal(x-1,y);
  13. 	}
  14. }
  15.  
  16. int main(void) {
  17. 	int x,y;
  18. 	scanf("%d %d", &x, &y);
  19. 	printf("%d", goal(x+y,x));
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/ZAMEtK
language:
C (gcc 8.3)
created:
44 days ago
visibility:
public

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