제출 #64915

#제출 시각아이디문제언어결과실행 시간메모리
64915daniel_02선물상자 (IOI15_boxes)C++17
10 / 100
2 ms504 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 = 0; if (K == 1) { for (int i = 0; i < N; i++) { if (p[i] <= L / 2) { ans += (p[i] * 2LL); } else { ans += ((L - p[i]) * 2LL); } } } else if (K == N) { bool l = 0, r = 0; for (int i = 0; i < N; i++) { if (p[i] <= L / 2) { l = 1; } else { r = 1; } } if (l == 1 && r == 0) { return (p[N - 1] * 2); } else if (r == 1 && l == 0) { return ((L - p[0]) * 2); } ans = L; long long cur = 0; for (int i = 0; i < N; i++) { if (p[i] > L / 2) { cur += (p[i - 1] * 2); break; } } for (int i = N - 1; i >= 0; i--) { if (p[i] <= L / 2) { cur += (p[i + 1] * 2); break; } } ans = min(ans, cur); } else { assert(0); } return ans; }
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