Submission #599997

#	Time	Username	Problem	Language	Result	Execution time	Memory
599997		daisy2	Game (IOI14_game)	C++14	100 / 100	381 ms	10304 KiB

game

#include "game.h"
#include<vector>
using namespace std;
int par[1505];
bool used[1505][1505];
vector<int> com;
void initialize(int n) {

   com.push_back(1);
   for(int i=1;i<=n;i++)
   {
       par[i]=i;
   }
}
int find_par(int vr)
{
    if(vr==par[vr]) return vr;
    return par[vr]=find_par(par[vr]);
}
int hasEdge(int u, int v) {

    u++;v++;
    used[u][v]=used[v][u]=1;

    u=find_par(u);
    v=find_par(v);

    if(u!=1 && v!=1)
        return 0;

    if(u==1 && v==1)
        return 0;

    if(v==1) swap(u,v);

    for(int i=0;i<com.size();i++)
    {
        if(!used[v][com[i]])
        {
            return 0;
        }
    }
    par[v]=u;
    com.push_back(v);
    return 1;
}

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for(int i=0;i<com.size();i++)
      |                 ~^~~~~~~~~~~

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