Submission #49121

#	Time	Username	Problem	Language	Result	Execution time	Memory
49121		faishol27	Hacker (BOI15_hac)	C++14	0 / 100	3 ms	452 KiB

hac

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

const int MAXE = 1e9+5;

int N, dapat;
ll  data[500005],
    total = 0,
    ans = MAXE,
    sliding = 0,
    setengah;

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> N;
    dapat = (N+1)/2;

    for(int i=0;i<N;i++){
        cin >> data[i];
        total += data[i];
    }
    setengah = total/2;

    for(int i=0;i<dapat;i++) sliding += data[i];
    
    if(sliding > setengah){
        ans = min(sliding, ans);
    }
    
    //cout << sliding << endl;

    for(int i=1;i<N;i++){
        int right = (dapat+i-1)%N;
        sliding = sliding-data[i-1]+data[right];
        
        if(sliding > setengah){
            ans = min(sliding, ans);
        }

    //    cout << sliding << endl;
    }

    cout << ans << endl;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 40