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Submission #746004

# Submission time Handle Problem Language Result Execution time Memory
746004 2023-05-21T10:30:35 Z vjudge1 Fancy Fence (CEOI20_fancyfence) C++17
13 / 100
 67 ms 2588 KB 
#include <bits/stdc++.h>
using namespace std;

const long long MOD = 1e9+7;

int main(){
    long long n; cin >> n;
    long long x;
    long long ans = 0;
    vector<long long> w, h, comp;
    long long wsum = 0;
    for(long long i = 0; i < n; i++){
        cin >> x;
        h.push_back(x);
    }
    for(long long i = 0; i < n; i++){
        cin >> x;
        wsum += x;
        wsum = wsum % MOD;
        w.push_back(x);
    }

    for(long long i = 0; i < n; i++){
        if(h[i] == 2){
            if(i == 0) comp.push_back(w[i]);
            else if(h[i-1] == 2) comp.back() += w[i];
            else comp.push_back(w[i]);
        }
    }

    for(long long k : comp) {
        k = k % MOD;
        ans += k*(k+1);
        ans = ans % MOD;
    }


    ans += wsum*(wsum+1)/2;
    ans = ans % MOD;

    cout << ans;
}

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 25 ms 1356 KB Output is correct
4 Correct 49 ms 2576 KB Output is correct
5 Correct 67 ms 2504 KB Output is correct
6 Correct 49 ms 2588 KB Output is correct

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Incorrect 2 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 1 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -