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Submission #592121

# Submission time Handle Problem Language Result Execution time Memory
592121 2022-07-08T14:17:28 Z jasmin Fancy Fence (CEOI20_fancyfence) C++14
58 / 100
 1000 ms 6380 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long

const int mod=1e9+7;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    //freopen("input1.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);

    int n;
    cin >> n;
    vector<int> h(n);
    map<int,int> ind; int x=1;
    vector<pair<int, vector<int> > >sorted;
    sorted.push_back({0, {}});
    for(int i=0; i<n; i++){
        cin >> h[i];
        if(ind[h[i]]==0){
            sorted.push_back({h[i], {}});
            ind[h[i]]=x;
            x++;
        }
        sorted[ind[h[i]]].second.push_back(i);
    }
    sort(sorted.begin(), sorted.end());
    reverse(sorted.begin(), sorted.end());
    vector<int> w(n);
    for(int i=0; i<n; i++){
        cin >> w[i];
    }

    vector<int> a(n+1);
    int ans=0;
    for(int i=0; i<(int)sorted.size()-1; i++){
        int h=sorted[i].first;
        int next=sorted[i+1].first;

        vector<int> ele=sorted[i].second;
        for(auto e: ele){
            a[e]=w[e];
        
        }

        int s=0; 
        int mom=(int)0;
        for(int j=0; j<=n; j++){
            if(a[j]==0){
                
                s+=((mom*(mom+1))/2)%mod;
                s%=mod;
                mom=0;
            }

            mom+=a[j];
            mom%=mod;
        }

        int factor=((h*(h+1))/2 - (next*(next+1))/2)%mod;
        ans+=(s*factor)%mod;
        ans%=mod;
    }

    cout << ans << "\n";
}

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 468 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 10 ms 2148 KB Output is correct
4 Correct 19 ms 4300 KB Output is correct
5 Correct 23 ms 4040 KB Output is correct
6 Correct 16 ms 4228 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 2 ms 724 KB Output is correct
3 Correct 11 ms 2388 KB Output is correct
4 Correct 21 ms 4364 KB Output is correct
5 Correct 27 ms 4308 KB Output is correct
6 Correct 1 ms 212 KB Output is correct

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 3 ms 724 KB Output is correct
4 Correct 16 ms 2388 KB Output is correct
5 Correct 23 ms 4304 KB Output is correct
6 Correct 23 ms 4360 KB Output is correct
7 Correct 6 ms 468 KB Output is correct
8 Correct 460 ms 1740 KB Output is correct
9 Execution timed out 1086 ms 4416 KB Time limit exceeded
10 Halted 0 ms 0 KB -

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 468 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 5 ms 468 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 6 ms 468 KB Output is correct
14 Correct 4 ms 440 KB Output is correct
15 Correct 4 ms 340 KB Output is correct
16 Correct 1 ms 320 KB Output is correct

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 468 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 5 ms 464 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 320 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 10 ms 2700 KB Output is correct
12 Correct 19 ms 5448 KB Output is correct
13 Correct 23 ms 5320 KB Output is correct
14 Correct 18 ms 5484 KB Output is correct
15 Correct 1 ms 372 KB Output is correct
16 Correct 3 ms 920 KB Output is correct
17 Correct 12 ms 3348 KB Output is correct
18 Correct 23 ms 6276 KB Output is correct
19 Correct 26 ms 6380 KB Output is correct
20 Correct 5 ms 468 KB Output is correct
21 Correct 455 ms 1992 KB Output is correct
22 Execution timed out 1083 ms 5440 KB Time limit exceeded
23 Halted 0 ms 0 KB -