Submission #260190

#	Time	Username	Problem	Language	Result	Execution time	Memory
260190		alexandra_udristoiu	Game (IOI14_game)	C++14	100 / 100	537 ms	25340 KiB

game

#include<iostream>
#include "game.h"
using namespace std;
static int n;
static int a[1505][1505], r[1505], num[1505];
static int rad(int x){
    while(r[x] >= 0){
        x = r[x];
    }
    return x;
}

void initialize(int N) {
    n = N;
    for(int i = 0; i < n; i++){
        r[i] = -1;
        num[i] = 1;
    }
}

int hasEdge(int x, int y) {
    int r1, r2, i;
    r1 = rad(x);
    r2 = rad(y);
    if(r1 == r2){
        return 1;
    }
    if(r[r1] > r[r2]){
        swap(r1, r2);
    }
    if(a[r1][r2] != num[r1] * num[r2] - 1){
        a[r1][r2]++;
        a[r2][r1]++;
        return 0;
    }
    r[r1] += r[r2];
    num[r1] += num[r2];
    r[r2] = r1;
    for(i = 0; i < n; i++){
        a[r1][i] += a[r2][i];
        a[i][r1] = a[r1][i];
    }
    return 1;
}

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