제출 #519338

#제출 시각아이디문제언어결과실행 시간메모리
519338pavement선물상자 (IOI15_boxes)C++17
100 / 100
539 ms222292 KiB
#include "boxes.h" #include <bits/stdc++.h> using namespace std; typedef long long ll; ll ans, cum[10000005], sf[10000005]; ll delivery(int N, int K, int L, int p[]) { for (int i = N - 1; i >= 0; i--) sf[i] = (i + K < N ? sf[i + K] : 0ll) + 2ll * (ll)(L - p[i]); ans = sf[0]; for (int i = 0; i < N; i++) { cum[i % K] += min(L, 2 * p[i]); ans = min(ans, cum[i % K] + sf[i + 1]); } return ans; }
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