제출 #1331248

#제출 시각아이디문제언어결과실행 시간메모리
1331248orgiloogiiBoxes with souvenirs (IOI15_boxes)C++20
0 / 100
0 ms344 KiB
#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
long long dp[10000001];
long long dp1[10000001];
long long delivery(int n, int k, int l, int p[]) {
    for (int i = 0;i < n;i++) {
        if (i - k < 0) {
            dp[i] = p[i] + min(p[i], l - p[i]);//butsah, toiroh
        }
        else {
            dp[i] = dp[i - k] + p[i] + min(p[i], l - p[i]);
        }
    }
    for (int i = n - 1;i >= 0;i--) {
        if (i + k >= n) {
            dp1[i] = p[i] + min(p[i], l - p[i]);//butsah, toiroh
        }
        else {
            dp1[i] = dp1[i + k] + p[i] + min(p[i], l - p[i]);
        }
    }
    long long ans = min(dp1[0], dp[n - 1]);
    for (int i = 0;i < n - 1;i++) {
        ans = min(ans, dp[i] + dp1[i + 1]);
    }
    return ans;
}
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