Submission #425543

#	Time	Username	Problem	Language	Result	Execution time	Memory
425543		haxorman	Boxes with souvenirs (IOI15_boxes)	C++14	20 / 100	2 ms	300 KiB

boxes

#include "boxes.h"
#include "bits/stdc++.h"
using namespace std;

int n, k, l;

long long delivery(int N, int K, int L, int p[]) {
    n = N, k = K, l = L;

    long long ans = 0;

    if (k == 1) {
        for (int i = 0; i < n; ++i) {
            ans += min(p[i], (l - 1) - p[i] + 1) * 2;
        }
    }
    else if (k == n) {
        long long half_1 = -1, half_2 = -1;
        for (int i = 0; i < n; ++i) {
            if (i) {
                assert(p[i] >= p[i - 1]);
            }

            if (p[i] <= l / 2) {
                half_1 = p[i];
            }
            else if (half_2 == -1) {
                half_2 = p[i];
            }
        }

        if (half_1 != -1) {
            ans += 2 * half_1;
        }

        if (half_2 != -1) {
            ans += 2 * ((l - 1) - half_2 + 1);
        }

        ans = min(ans, (long long) l);
    }
    return ans;
}

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