Submission #72618

#	Time	Username	Problem	Language	Result	Execution time	Memory
72618		vex	Game (IOI14_game)	C++14	100 / 100	812 ms	160208 KiB

game

#include <bits/stdc++.h>
#define maxn 1505
using namespace std;

int n;
int sz[maxn],p[maxn],br[maxn][maxn];
void initialize(int N)
{
    n=N;
    for(int i=0;i<n;i++)
    {
        sz[i]=1;
        p[i]=i;
    }
    for(int i=0;i<n;i++)for(int j=0;j<n;j++)br[i][j]=0;
}
int fnd(int x)
{
    if(x==p[x])return x;
    return p[x]=fnd(p[x]);
}
int hasEdge(int u,int v)
{
    u=fnd(u);
    v=fnd(v);

    if(u==v)return 1;
    if(sz[u]<sz[v])swap(u,v);

    if(br[u][v]+1==sz[u]*sz[v])
    {
        sz[u]+=sz[v];
        p[v]=p[u];

        for(int i=0;i<n;i++)
        {
            if(i==u)continue;

            br[u][i]+=br[v][i];
            br[i][u]+=br[v][i];
        }
        return 1;
    }

    br[u][v]++;
    br[v][u]++;
    return 0;
}

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