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Submission #292826

# Submission time Handle Problem Language Result Execution time Memory
292826 2020-09-07T13:53:31 Z Autoratch Divide and conquer (IZhO14_divide) C++14
100 / 100
 87 ms 11128 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 1e5 + 1;

int n;
long long x[N],g[N],e[N];
set<pair<long long,long long> > s;
long long ans;
    
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);

    cin >> n;
    for(int i = 1;i <= n;i++) cin >> x[i] >> g[i] >> e[i],e[i]+=e[i-1],g[i]+=g[i-1];
    for(int i = 1;i <= n;i++)
    {
        auto it = s.upper_bound({e[i]-x[i],INT_MAX});
        if(it!=s.begin())
        {
            it--;
            ans = max(ans,g[i]-it->second);
        }
        else ans = max(ans,g[i]-g[i-1]);
        it = s.upper_bound({e[i-1]-x[i],INT_MAX});
        bool out = false;
        if(it!=s.begin())
        {
            it--;
            if(it->second<g[i-1]) out = true;
        }
        if(out) continue;
        it = s.lower_bound({e[i-1]-x[i],INT_MAX});
        while(it!=s.end() and it->second>=g[i-1]) it = s.erase(it);
        s.insert({e[i-1]-x[i],g[i-1]});
    }
    cout << ans;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct

Subtask #2
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 416 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 2 ms 512 KB Output is correct
23 Correct 4 ms 1024 KB Output is correct
24 Correct 4 ms 896 KB Output is correct

Subtask #3
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 416 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 2 ms 512 KB Output is correct
23 Correct 4 ms 1024 KB Output is correct
24 Correct 4 ms 896 KB Output is correct
25 Correct 2 ms 512 KB Output is correct
26 Correct 3 ms 768 KB Output is correct
27 Correct 4 ms 760 KB Output is correct
28 Correct 18 ms 2680 KB Output is correct
29 Correct 18 ms 2816 KB Output is correct
30 Correct 38 ms 5760 KB Output is correct
31 Correct 29 ms 4472 KB Output is correct
32 Correct 33 ms 4472 KB Output is correct
33 Correct 29 ms 4344 KB Output is correct
34 Correct 63 ms 7544 KB Output is correct
35 Correct 87 ms 11128 KB Output is correct
36 Correct 85 ms 11000 KB Output is correct