제출 #431158

#제출 시각아이디문제언어결과실행 시간메모리
431158proma선물상자 (IOI15_boxes)C++17
20 / 100
1 ms204 KiB
#include <bits/stdc++.h>
#include "boxes.h"

#define see(x) cerr<<#x<<"="<<"\n";

using namespace std;

long long delivery(int N, int K, int L, int p[]) {
    if (K == 1) {
        long long ans = 0;
        for (int i = 0; i < N; i ++) {
            if (p[i] <= L / 2) {
                ans += 2 * p[i];
            }
            else {
                ans += 2 * (L - p[i]);
            }
        }
        return ans;
    }
    if (K == N) {
        long long ans = L;
        long long pos1 = 0, pos2 = L;
        for (int i = 0; i < N; i ++) {
            if (p[i] <= L / 2) pos1 = p[i];
            else if (pos2 == L) pos2 = p[i];
        }
        ans = min(ans, 2 * pos1 + 2 * (L - pos2));
        return ans;
    }
    return 0;
}
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