Submission #871404

#	Time	Username	Problem	Language	Result	Execution time	Memory
871404		Trisanu_Das	Fancy Fence (CEOI20_fancyfence)	C++17	12 / 100	162 ms	262144 KiB

fancyfence

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
 
int N, L;
ll h[100005], w[100005];
vector<ll> nh;
 
int main(){
    cin >> N;
    for(int i=0;i<N;i++) cin >> h[i];
    for(int i=0;i<N;i++){
        cin >> w[i];
        for(int j=0;j<w[i];j++){
            L++;
            nh.push_back(h[i]);
        }
    }
    ll ans=0;
    for(int i=0;i<L;i++){
        for(int j=0; j<=i; j++){
            ll m=INT_MAX;
            for(int k=j;k<=i;k++) m = min(m, nh[k]);
            (ans += (m*(m+1))/2LL) %= 100000007;
        }
    }
    cout << ans << '\n';
}

• Subtask 1: 0 / 0
• Subtask 2: 12 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 18
• Subtask 7: 0 / 27