제출 #401787

#제출 시각아이디문제언어결과실행 시간메모리
401787iulia13선물상자 (IOI15_boxes)C++14
10 / 100
1 ms332 KiB
#include "boxes.h" #include <iostream> #include <algorithm> using namespace std; #define ll long long const ll N = 1e7; ll dp1[N * 2]; ll dp2[N * 2]; ll delivery(int n, int k, int l, int p[]) { sort(p, p + n); ll ans = N * N; int i; for (i = 0; i < n; i++) { if (i < k) dp1[i] = 1ll * p[i] * 2; else dp1[i] = 1ll * p[i] * 2 + dp1[i - k]; } for (i = n - 1; 0 <= i; i--) { if (n - i <= k) dp2[i] = 1ll * (l - p[i]) * 2; else dp2[i] = 1ll * (l - p[i]) * 2 + dp2[i + k]; } for (i = 0; i < n; i++) ans = min(dp1[i] + dp2[i + 1], ans); return ans; }/* int n, k, l; int pp[N]; int main() { cin >> n >> k >> l; for (int i = 0; i < n; i++) cin >> pp[i]; cout << delivery(n, k, l, pp); return 0; }*/
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