제출 #1146529

#제출 시각아이디문제언어결과실행 시간메모리
1146529NomioGrowing Vegetables is Fun 4 (JOI21_ho_t1)C++20
100 / 100
15 ms5740 KiB
#include<bits/stdc++.h> using namespace std; using ll = long long; int main() { ios::sync_with_stdio(0); cin.tie(0); int n; cin >> n; int a[n]; ll b[n - 1]; for(int i = 0; i < n; i++) { cin >> a[i]; } for(int i = 0; i < n - 1; i++) { b[i] = a[i] - a[i + 1]; } ll c[n] {}, d[n] {}; for(int i = 0; i < n - 1; i++) { c[i + 1] = c[i] + max(0LL, 1 + b[i]); } for(int i = n - 2; i >= 0; i--) { d[i] = d[i + 1] + max(0LL, 1 - b[i]); } ll ans = 1e18; for(int i = 0; i < n; i++) { ans = min(ans, max(c[i], d[i])); } cout << ans << '\n'; return 0; }
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