oj.uz

Submission #1040381

# Submission time Handle Problem Language Result Execution time Memory
1040381 2024-08-01T02:48:09 Z vjudge1 Divide and conquer (IZhO14_divide) C++17
100 / 100
 21 ms 8292 KB 
#include<bits/stdc++.h>
using namespace std;
long long n,x[100005],g[100005],d[100005],cv[100005],f[100005],ans=0;
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);cout.tie(0);
//	freopen(".inp","r",stdin);
//	freopen(".out","w",stdout);
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>x[i]>>g[i]>>d[i];
		cv[i]=cv[i-1]+g[i];
		f[i]=f[i-1]+d[i];
	}
	vector<long long> v,u;
	v.push_back(f[0]-x[1]);
	u.push_back(1);
	ans=g[1];
	for(int i=2;i<=n;i++)
	{
		long long vl=f[i-1]-x[i];
		if(vl<v[v.size()-1]) {v.push_back(vl);u.push_back(i);}
		long long k=f[i]-x[i];
		long long l=0,r=v.size()-1,vt=-1;
		while(l<=r)
		{
			long long mid=(l+r)/2;
			if(v[mid]<=k)
			{
				r=mid-1;
				vt=mid;
			}
			else l=mid+1;
		}
//		cout<<k<<' '<<vt<<endl;
		if(vt==-1) continue;
		long long h=u[vt];
//		cout<<k<<' '<<h<<' '<<i<<endl;
		ans=max(ans,cv[i]-cv[h-1]);
	}
	cout<<ans;
	return 0;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 464 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 464 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 464 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 464 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 352 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 1 ms 908 KB Output is correct
24 Correct 1 ms 896 KB Output is correct

Subtask #3
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 464 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 464 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 352 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 1 ms 908 KB Output is correct
24 Correct 1 ms 896 KB Output is correct
25 Correct 1 ms 612 KB Output is correct
26 Correct 1 ms 868 KB Output is correct
27 Correct 2 ms 860 KB Output is correct
28 Correct 7 ms 3224 KB Output is correct
29 Correct 9 ms 3760 KB Output is correct
30 Correct 21 ms 6996 KB Output is correct
31 Correct 14 ms 6028 KB Output is correct
32 Correct 14 ms 5992 KB Output is correct
33 Correct 15 ms 5992 KB Output is correct
34 Correct 15 ms 6828 KB Output is correct
35 Correct 19 ms 8156 KB Output is correct
36 Correct 18 ms 8292 KB Output is correct