Submission #136596

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
136596	2019-07-25T17:23:39 Z	FedericoS	Divide and conquer (IZhO14_divide)	C++14	48 / 100	1000 ms	4188 KB

divide

#include <iostream>
#include <set>
using namespace std;
typedef long long int ll;
typedef pair<ll,ll> pii;

ll N;
ll X[1000006],G[1000006],D[1000006];
ll A[1000006];
ll Gsum[1000006],Dsum[1000006];
ll ans,best;
set<pii> S;

ll query(ll x){
	ll res=0;
	for(pii p:S)
		if(p.second>=x)
			res=max(res,p.first);
	return res;
}

int main(){
	cin>>N;
	for(ll i=1;i<N+1;i++){
		cin>>X[i]>>G[i]>>D[i];
		Gsum[i]=Gsum[i-1]+G[i];
		Dsum[i]=Dsum[i-1]+D[i];
	}

	for(ll i=N;i>0;i--){
		S.insert({Gsum[i],Dsum[i]-X[i]});
		ans=max(ans,query(Dsum[i-1]-X[i])-Gsum[i-1]);
	}

	cout<<ans;

}

Subtask #1

17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	348 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	3 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct

Subtask #2

31.0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	380 KB	Output is correct
2	Correct	3 ms	376 KB	Output is correct
3	Correct	4 ms	376 KB	Output is correct
4	Correct	5 ms	504 KB	Output is correct
5	Correct	7 ms	376 KB	Output is correct
6	Correct	12 ms	504 KB	Output is correct
7	Correct	8 ms	504 KB	Output is correct
8	Correct	7 ms	508 KB	Output is correct
9	Correct	14 ms	504 KB	Output is correct
10	Correct	22 ms	508 KB	Output is correct
11	Correct	135 ms	1012 KB	Output is correct
12	Correct	138 ms	1016 KB	Output is correct

Subtask #3

0 / 52.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	135 ms	1040 KB	Output is correct
2	Correct	616 ms	1460 KB	Output is correct
3	Correct	618 ms	1504 KB	Output is correct
4	Execution timed out	1080 ms	4188 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-