제출 #747221

#제출 시각아이디문제언어결과실행 시간메모리
747221Abrar_Al_SamitBoxes with souvenirs (IOI15_boxes)C++17
0 / 100
3 ms340 KiB
#include <bits/stdc++.h>
#include "boxes.h"
using namespace std;

const int nax = 1e3 + 3;
const long long INF = 1e18;


long long dp[nax];
int n, k, L;
int a[nax]; //a[0] = a[n+1] = 0
int c[nax];

int get(int i, int j) {
    return min(abs(a[j]-a[i]), L-abs(a[j]-a[i]));
}
long long delivery(int N, int K, int l, int p[]) {
    n = N, k = K, L = l;
    for(int i=1; i<=n; ++i) {
        a[i] = p[i-1];
        c[i] = min(a[i], L-a[i]);
    }

    for(int i=1; i<=n+1; ++i) {
        dp[i] = INF;
    }
    for(int i=0; i<=n; ++i) {
        for(int j=1; j<=k; ++j) {
            dp[i+j+1] = min(dp[i+j+1], dp[i] + get(i, i+j) + c[i+j] + c[i+j+1]);
        }
    }

    return dp[n+1];
}
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