제출 #1016482

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1016482		yanb	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++14	100 / 100	21 ms	8792 KiB

Main

#include <bits/stdc++.h>
    
using namespace std;
    
#define int long long
#define pii pair<long long, long long>
#define t3i tuple<long long, long long, long long>

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];

    vector<int> d(n - 1);
    for (int i = 0; i < n - 1; i++) d[i] = a[i + 1] - a[i];

    vector<int> pos(n), neg(n);
    for (int i = 0; i < n - 1; i++) pos[i + 1] = pos[i] + max(0ll, 1 - d[i]);
    for (int i = n - 2; i >= 0; i--) neg[i] = neg[i + 1] + max(0ll, d[i] + 1);

    /*for (int i = 0; i < n - 1; i++) cout << d[i] << "\t";
    cout << "\n";
    for (int i = 0; i < n; i++) cout << pos[i] << "\t";
    cout << "\n";
    for (int i = 0; i < n; i++) cout << neg[i] << "\t";
    cout << "\n";*/

    int ans = 1e17;
    for (int i = 0; i < n; i++) ans = min(ans, max(pos[i], neg[i]));
    cout << ans << "\n";
}   

• Subtask 1: 40 / 40
• Subtask 2: 60 / 60