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Submission #745759

# Submission time Handle Problem Language Result Execution time Memory
745759 2023-05-21T07:24:21 Z vjudge1 Fancy Fence (CEOI20_fancyfence) C++14
15 / 100
 85 ms 3896 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

const int MOD = 1e9 +7;

int binpow(int a, int b){
    int ans = 1;
    while(b != 0){
        if(b & 1){
            ans = ans * a % MOD;
        }
        a = a * a % MOD;
        b /= 2;
    }
    return ans;
}

signed main() {
    int n;
    cin >> n;
    vector<int> h(n), w(n);
    int cnt = 0;
    for(int i = 0; i < n; i++){
        cin >> h[i];
    }
    for(int i = 0; i < n; i++){
        cin >> w[i];
        cnt = (cnt + w[i]) % MOD;
    }
    int z = (((cnt * (cnt + 1) % MOD)* h[0]) % MOD) * (h[0] + 1) % MOD;
    int g = binpow(4, MOD - 2);
    z = z * g % MOD;
    cout << z << endl;
    return 0;
}

Subtask #1
0 / 0.0

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

Subtask #2
0 / 12.0

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

Subtask #3
0 / 13.0

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

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 444 KB Output is correct
2 Correct 10 ms 596 KB Output is correct
3 Correct 36 ms 1960 KB Output is correct
4 Correct 85 ms 3788 KB Output is correct
5 Correct 84 ms 3896 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 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 18.0

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

Subtask #7
0 / 27.0

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