Submission #594637

#	Time	Username	Problem	Language	Result	Execution time	Memory
594637		Vanilla	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	524 ms	292780 KiB

boxes

#include <bits/stdc++.h>
#include "boxes.h"
using namespace std;
typedef long long int64;
const int maxn = 1e7 + 2;
int64 l[maxn], r[maxn];

long long delivery(int n, int k, int m, int p[]) {
    for (int64 i = 1; i <= n; i++){
        l[i] = l[max(0ll, i - k)] + min(1ll * p[i-1] * 2, 1ll * m);
    }
    reverse(p, p + n);
    for (int64 i = 1; i <= n; i++){
        r[i] = r[max(0ll, i - k)] + min(1ll * (m - p[i-1]) * 2, 1ll * m);
        // cout << i << " " << r[i] << "\n";
    }
    int64 rs = 1e18;
    for (int64 i = 0; i <= n; i++){
        // cout << i << " " << l[i] << " " << r[n - i] << "\n";
        rs = min(rs, l[i] + r[n - i]);
    }
    return rs;
}

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