Submission #729162

#	Time	Username	Problem	Language	Result	Execution time	Memory
729162		sofija6	Game (IOI14_game)	C++14	42 / 100	1076 ms	12784 KiB

game

#include <bits/stdc++.h>
#define MAXN 1510
using namespace std;
set<int> G[MAXN],a,b;
int N;
void initialize(int n)
{
    N=n;
    for (int i=0;i<n;i++)
    {
        for (int j=0;j<n;j++)
        {
            if (i!=j)
                G[i].insert(j);
        }
    }
}
void DFS(int i,pair<int,int> skipp,set<int> &s)
{
    s.insert(i);
    for (int next : G[i])
    {
        if ((i==skipp.first && next==skipp.second) || (i==skipp.second && next==skipp.first))
            continue;
        if (!s.count(next))
        {
            s.insert(next);
            DFS(next,skipp,s);
        }
    }
}
bool Check(int u,int v)
{
    a.clear();
    b.clear();
    DFS(u,{u,v},a);
    DFS(v,{u,v},b);
    return (a.size()!=N || b.size()!=N);
}
int hasEdge(int u, int v)
{
    if (Check(u,v))
        return 1;
    G[u].erase(v);
    G[v].erase(u);
    return 0;
}

Compilation message (stderr)

game.cpp: In function 'bool Check(int, int)':
game.cpp:38:21: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   38 |     return (a.size()!=N || b.size()!=N);
      |             ~~~~~~~~^~~
game.cpp:38:36: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   38 |     return (a.size()!=N || b.size()!=N);
      |                            ~~~~~~~~^~~

• Subtask 1: 15 / 15
• Subtask 2: 27 / 27
• Subtask 3: 0 / 58