제출 #1081933

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1081933		raphael_heuchl	선물상자 (IOI15_boxes)	C++14	50 / 100	70 ms	34296 KiB

boxes

#include "boxes.h"
#include <vector>
#include <algorithm>
#include <map>
#include <iostream>
#define INF 1'000'000'000'000'000'000

std::vector<long long> people;
long long n, l, k;
long long dist(long long curr)
{
    return std::min(l - people[curr], people[curr]);
}

long long dp[1005][1005];
long long f(long long curr, long long pres)
{
    if (dp[curr][pres])
        return dp[curr][pres];

    if (curr == n)
        return dp[curr][pres] = dist(curr);

    long long optionA = pres ? std::abs(people[curr] - people[curr+1]) + f(curr + 1, pres - 1) : INF;
    long long optionB = dist(curr) + dist(curr + 1) + f(curr + 1, k-1);
    return dp[curr][pres] = std::min(optionA, optionB);
}

long long delivery(int N, int K, int L, int p[])
{
    n = N, k = K, l = L;
    people.push_back(0);
    for (int i = 0; i < N; ++i)
        people.push_back(p[i]);
    std::sort(people.begin(), people.end());
    return f(0, K - 1);
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30