Submission #581343

#	Time	Username	Problem	Language	Result	Execution time	Memory
581343		kamelfanger83	Game (IOI14_game)	C++14	100 / 100	467 ms	25232 KiB

game

#include <iostream>
#include <vector>
#include "game.h"

using namespace std;

vector<int> group;
vector<vector<int>> cons;
int gn;

int get(int u){
    int s = u;
    while(u != group[u]) u = group[u];
    while(s != group[s]){
        int ls = s;
        s = group[s];
        group[ls] = u;
    }
    return u;
}

void unite(int u, int v){
    u = get(u); v = get(v);
    for(int adder = 0; adder < gn; ++adder) cons[u][adder] += cons[v][adder];
    for(int oc = 0; oc < gn; ++oc) cons[oc][u] += cons[oc][v];
    group[v] =  u;
}

void initialize(int n){
    group.resize(n); for(int i = 0; i < n; ++i) group[i] = i;
    cons.assign(n, vector<int> (n, 1)); for(int i = 0; i < n; ++i) cons[i][i] = 0;
    gn = n;
}

int hasEdge(int u, int v){
    if(cons[get(u)][get(v)] != 1){
        cons[get(u)][get(v)] -= 1;
        cons[get(v)][get(u)] -= 1;
        return 0;
    }
    else{
        unite(u, v);
        return 1;
    }
}

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