Submission #581391

#	Time	Username	Problem	Language	Result	Execution time	Memory
581391		jasmin	Game (IOI14_game)	C++17	100 / 100	460 ms	24656 KiB

game

#include<bits/stdc++.h>
#include<game.h>
using namespace std;
#define int long long

vector<int> chef;
vector<int> s;
vector<vector<int> > con;
int n;
int find(int a){
    if(chef[a]==a) return a;
    return chef[a]=find(chef[a]);
}
void unite(int a, int b){
    assert(find(a)!=find(b));        
    s[find(a)]+=s[find(b)];
    for(int i=0; i<n; i++){
        if(find(i)!=i) continue;
        con[find(i)][find(a)]+=con[find(i)][find(b)];
    }
    for(int i=0; i<n; i++){
        if(find(i)!=i) continue;
        con[find(a)][find(i)]+=con[find(b)][find(i)];
    }
    chef[find(b)]=find(a);
}

void initialize(int32_t a){
    n=a;
    chef.assign(n, 0);
    iota(chef.begin(), chef.end(), 0);
    s.assign(n, 1);
    con.assign(n, vector<int> (n, 0));
}

int32_t hasEdge(int32_t u, int32_t v){
    assert(find(u)!=find(v));
    con[find(u)][find(v)]++;
    con[find(v)][find(u)]++;
    //cout << con[find(u)][find(v)] << " " << s[find(u)] << " " << s[find(v)] << "\n";
    if(con[find(u)][find(v)]==s[find(u)]*s[find(v)]){
        unite(u, v);
        return 1;
    }
    return 0;
}

/*signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n;
    cin >> n;
    initialize(n);
    for(int i=0; i<(n*(n-1))/2; i++){
        int a, b;
        cin >> a >> b;
        cout << hasEdge(a, b) << "\n" << flush;
        for(int i=0; i<n; i++){
            cout << i << " " << find(i) << "\n";
            for(int j=0; j<n; j++){
                cout << j << " " << find(j) << " " << con[find(i)][find(j)] << "\n";
            }
        }
        cout << "hallo\n" << flush;
    }
}*/

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