Submission #761612

#	Time	Username	Problem	Language	Result	Execution time	Memory
761612		gggkik	도넛 (JOI14_ho_t3)	C++14	0 / 100	1 ms	212 KiB

2014_ho_t3

#include <bits/stdc++.h>
using namespace std;
const int MXN = 1e5+5;
#define ll long long
ll A[MXN], P[MXN], n, all, T;
vector<ll> sa, sb;
ll sum(int i,int j){return (i<=j?P[j]-P[i-1]:0);}
int cut(ll x,int i){
    return T;
}
int f(ll x){ // 답이 x 이상인가?
    if(cut(x,-1)>=x) return 1;
    return 0;
}
int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n;
    for(int i = 1;i<=n;i++){
        cin >> A[i]; P[i] = P[i-1]+A[i];
    }
    for(int i = 1;i<=n;i++){
        for(int j = i;j<=n;j++){
            for(int k = j+1;k<=n;k++){
                T = max(T,min({sum(i,j),sum(j+1,k),sum(k+1,n)+sum(1,i-1)}));
            }
        }
    }
    ll l = 0, r = P[n];
    for(;l+1<r;){
        ll mid = (l+r)/2;
        if(f(mid)) l = mid;
        else r = mid;
    }
    cout << l;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 15
• Subtask 3: 0 / 30
• Subtask 4: 0 / 50