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  1. #include <iostream>
  2. #include <algorithm>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n,x;
  7. 	cin >> n >> x;
  8. 	int p[n];
  9. 	for (int i=0;i<n;i++) {
  10. 		cin >> p[i];
  11. 	}
  12. 	sort(p,p+n);
  13. 	int i=0,j=n-1,d=0;
  14. 	while (i<=j) {
  15. 		if (p[i]+p[j]<=x) {
  16. 			i++;
  17. 		}
  18. 		j--;
  19. 		d++;
  20. 	}
  21. 	cout << d;
  22. }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
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4 10
7 2 3 9
stdout
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3
https://ideone.com/aVnBXv
language:
C++14 (gcc 8.3)
created:
5 days ago
visibility:
public

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