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  1. #include <bits/stdc++.h>//virtal 183d
  2. using namespace std;
  3.  
  4. const int MaxN=2e5;
  5. const int MaxT=2e5;
  6. long add[MaxT+1]={};//變化量
  7. int main() {
  8. 	int N,W,S,T,P;
  9. 	cin>>N>>W;
  10. 	for(int n=0;n<N;n++){
  11. 		cin>>S>>T>>P;
  12. 		add[S]+=P;
  13. 		add[T]-=P;
  14. 	}
  15. 	long now=0;
  16. 	for(int t=0;t<=MaxT;t+=1){
  17. 		now+=add[t];
  18. 		if(now>W){
  19. 			cout<<"No";
  20. 			return 0;
  21. 		}
  22. 	}
  23. 	cout<<"Yes";
  24. }
Success #stdin #stdout 0.01s 5272KB
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stdin
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Standard input is empty
stdout
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Yes
https://ideone.com/QVPsIG
language:
C++ (gcc 8.3)
created:
12 days ago
visibility:
public

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