제출 #344697

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
344697		koketsu	Bigger segments (IZhO19_segments)	C++14	0 / 100	1 ms	364 KiB

segments

#include <bits/stdc++.h>
#define pb push_back
#define LL long long
#define Kultivator ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

using namespace std;

const LL Mxn = 1e6 + 7;
const LL Mod = 1e9 + 7;
const LL Inf = 1e14 + 7;

LL N, Pref[Mxn], Mx[Mxn], Dp[Mxn], A;

int main() {
    Kultivator;
    cin >> N;
    for(int i = 1; i <= N; i++){
        cin >> A;
        Pref[i] = (Pref[i - 1] + A);
    }
    for(int i = 1; i <= N; i++){
        Dp[i] = Dp[Mx[i]] + 1;
        int ind = lower_bound(Pref, Pref + N + 1, (2 * Pref[i]) - Pref[Mx[i]]) - Pref;
        Mx[ind] = max(Mx[i], (LL)i);
    }
    cout << Dp[N];
}

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27