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  1. #include <iostream>
  2. #include <cstdio>
  3. #include <algorithm>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	int k, n, ans=0;
  8. 	pair <int, int> p[55];
  9. 	scanf("%d%d", &n, &k);
  10. 	for(int i=0; i<n; i++) scanf("%d%d", &p[i].first, &p[i].second), p[i].first*=-1;
  11. 	sort(p, p+n);
  12. 	for(int i=0; i<n; i++) if(p[i]==p[k-1]) ans++;
  13. 	printf("%d", ans);
  14. 	return 0;
  15. }
Success #stdin #stdout 0s 3344KB
comments ()
stdin 
5 4
3 1
3 1
5 3
3 1
3 1
stdout 
4
https://ideone.com/iEgAy0
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
secret

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