제출 #424770

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
424770		ollel	선물상자 (IOI15_boxes)	C++14	20 / 100	1 ms	204 KiB

boxes

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

#define rep(i,a,b) for(int i = a; i < b; i++)
#define pb push_back
#define lso(x) x&(-x)

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;

int n, k, l;
vi p;
vi pos;

ll min(ll a, int b) {return min(a, (ll)b);}

ll kone() {
  ll ans = 0;
  rep(i,0,n) {
    ans += 2*min(pos[i], l - pos[i]);
  }
  return ans;
}

ll kn() {
  ll ans = l;
  ans = min(ans, 2*(l - pos[0]));
  ans = min(ans, 2*pos[n - 1]);
  rep(i,0,n - 1) {
    ans = min(ans, 2*pos[i] + 2*(l - pos[i + 1]));
  }
  return ans;
}

ll n10() {
  return 0;
}

ll delivery(int N, int K, int L, int positions[]) {
  n = N; k = K; l = L;
  pos.resize(n); rep(i,0,n) pos[i] = positions[i];
  if (k == 1) return kone();
  else if (k == n) return kn();
  else if (n <= 10) return n10();
  return 0;
}

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