Submission #348389

#	Time	Username	Problem	Language	Result	Execution time	Memory
348389		iliccmarko	Game (IOI14_game)	C++14	15 / 100	1 ms	492 KiB

game

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl "\n"
#define INF 1000000000
#define LINF 1000000000000000LL
#define pb push_back
#define all(x) x.begin(), x.end()
#define len(s) (int)s.size()
#define test_case { int t; cin>>t; while(t--)solve(); }
#define single_case solve();
#define line cerr<<"----------"<<endl;
#define ios { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); cerr.tie(NULL); }
#define mod 1000000007LL
int n;
const int N = 1505;
int parent[N], s[N];
int cnt[N][N];

inline int find_parent(int u)
{
    if(parent[u]==u) return u;
    return parent[u] = find_parent(parent[u]);
}

inline void _union(int u, int v)
{
    u = find_parent(u);
    v = find_parent(v);
    if(u!=v)
    {
        if(s[u]<s[v]) swap(u, v);
        for(int i = 1;i<=n;i++)
        {
            cnt[i][u] += cnt[i][v];
        }
        parent[v] = u;
        s[u] += s[v];
    }
}

void initialize(int N)
{
    n = N;
    for(int i = 1;i<=n;i++) parent[i] = i, s[i] = 1;
}

int hasEdge(int u, int v)
{
    u++;
    v++;
    int a = find_parent(u);
    int b = find_parent(v);
    int w = s[a]*s[b];
    for(int i = 1;i<=n;i++)
    {
        if(parent[i]==b) w -= cnt[i][a];
    }
    //cout<<u<<" "<<v<<" "<<a<<" "<<b<<" "<<w<<endl;
    cnt[u][b]++;
    cnt[v][a]++;
    if(w==1)
    {
        _union(a, b);
        return 1;
    }
    return 0;
}

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