제출 #385312

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
385312		mohamedsobhi777	전차 (CEOI13_tram)	C++14	45 / 100	1077 ms	1048 KiB

tram

#include <bits/stdc++.h>

using namespace std;

#define vi vector<int>
#define vll vector<ll>
#define vii vector<pair<int, int>>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define loop(_) for (int __ = 0; __ < (_); ++__)
#define pb push_back
#define f first
#define s second
#define sz(_) ((int)_.size())
#define all(_) _.begin(), _.end()
#define lb lower_bound
#define ub upper_bound

using ll = long long;
using ld = long double;

const int N = 1e5 + 7;
const ll mod = 1e9 + 7;

int n, m;
int vis[N][2];
int xs[N], ys[N];
multiset<int> mul;

int calc(int x, int y)
{
       int ret = 1e9;
       if (mul.empty())
              return ret;
       auto eval =[&](int u) -> void{
              for(int i = 0 ;i < 2 ; ++ i){
                     if(vis[u][i]){
                            ret = min(ret , (u-x)*(u-x) + (i-y)*(i-y) ) ;
                     }
              }
       } ;
       auto it = mul.lb(x);
       if(it != mul.end())
              eval(*it) ; 
       if(it != mul.begin())
              eval(*(--it)) ; 
       return ret;
}

int main()
{
       ios_base::sync_with_stdio(0);
       cin.tie(0);
#ifndef ONLINE_JUDGE
#endif
       cin >> n >> m;
       for (int i = 0; i < m; ++i)
       {
              char c;
              cin >> c;
              if (c == 'E')
              {
                     int Min = 0;
                     int wx = 0, wy = 0;
                     for (int a = 0; a < n; ++a)
                     {
                            for (int b = 0; b < 2; ++b)
                            {
                                   int w = calc(a, b);
                                   if (w > Min)
                                   {
                                          Min = w;
                                          wx = a, wy = b;
                                   }
                            }
                     }
                     xs[i] = wx, ys[i] = wy;
                     vis[wx][wy] = 1;
                     mul.insert(wx);
                     cout << ++wx << " " << ++wy << "\n";
              }
              else
              {
                     int p;
                     cin >> p;
                     --p;
                     mul.erase(mul.find(xs[p]));
                     vis[xs[p]][ys[p]] = 0;
              }
       }
       return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 15
• Subtask 8: 0 / 20