제출 #420095

#제출 시각아이디문제언어결과실행 시간메모리
420095temurbek_khujaev선물상자 (IOI15_boxes)C++17
25 / 100
1 ms288 KiB
#include "boxes.h" #include <bits/stdc++.h> using namespace std; long long delivery(int N, int K, int L, int p[]) { long long ans = 1ll * N * L; int mid = -1; while (mid + K + 1 < N && p[mid + K + 1] <= (L + 1) / 2) mid++; for (int i = mid; i < min(N, mid + K + K + 2); i++) { long long cur = 0; int x = i; int y = i + 1; while (x >= 0) { cur += min(L, p[x] * 2); x -= K; } while (y < N) { cur += min(L, (L - p[y]) * 2); y += K; } ans = min(ans, cur); } return ans; }
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