제출 #384954

#제출 시각아이디문제언어결과실행 시간메모리
384954timmyfengGrowing Vegetables is Fun 4 (JOI21_ho_t1)C++17
100 / 100
28 ms3180 KiB
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); int n; cin >> n; vector<int> a(n); for (auto &i : a) { cin >> i; } long long ans = LLONG_MAX, left = 0, right = 0; for (int i = 1; i < n; ++i) { right += max(0, a[i] - a[i - 1] + 1); } for (int i = 0; i < n; ++i) { ans = min(ans, max(left, right)); if (i < n - 1) { left += max(0, a[i] - a[i + 1] + 1); right -= max(0, a[i + 1] - a[i] + 1); } } cout << ans << "\n"; }
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