| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1265721 | martin_011 | 선물상자 (IOI15_boxes) | C++20 | 0 ms | 328 KiB |
#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vll;
long long delivery(int n, int k, int l, int p[]) {
ll res = l;
vll a;
set<ll> s;
a.push_back(0);
a.push_back(l);
s.insert(0);
s.insert(l);
for (int i=0; i<n; i++) {
ll t = s.size();
s.insert(p[i]);
if (s.size() > t) a.push_back(p[i]);
}
ll tam = a.size();
sort(a.begin(), a.end());
for (int i=0; i<(tam-1); i++) {
res = min(res, 2 * (l - (a[i+1] - a[i])));
}
return res;
}
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