제출 #714055

#제출 시각아이디문제언어결과실행 시간메모리
714055thimote75Boxes with souvenirs (IOI15_boxes)C++14
0 / 100
2 ms312 KiB
#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;

#define num long long

vector<num> dp;

num valuation (int L, int P) {
    return min(P, L - P);
}

long long delivery(int N, int K, int L, int p[]) {
    sort(p, p + N);
    
    dp.resize(N + 1, 0);
    dp[0] = 0;
    dp[1] = valuation(L, p[0]) * 2;

    for (int i = 2; i <= N; i ++) {
        int pos = p[i - 1];
        num mov = valuation(L, pos) + pos;
        num mmv = 1e18;

        for (int j = max(0, i - K); j < i; j ++) {
            num del = j == 0 ? 0 : valuation(L, p[j - 1]) - p[j - 1];

            mmv = min(mmv, del + dp[j]);
        }

        dp[i] = mmv + mov;
    }

    return dp[N];
}
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