Submission #782187

#	Time	Username	Problem	Language	Result	Execution time	Memory
782187		Andrey	Game (IOI14_game)	C++14	0 / 100	1 ms	340 KiB

game

#include "game.h"
#include<bits/stdc++.h>
using namespace std;

int br[1501][1501];
vector<int> dsu(1501);
int k;

int calc(int a) {
    while(dsu[a] != a) {
        a = dsu[a];
    }
    return a;
}

void initialize(int n) {
    k = n;
    for(int i = 1; i <= n; i++) {
        for(int j = 1; j <= n; j++) {
            br[i][j] = 1;
        }
    }
    for(int i = 1; i <= n; i++) {
        dsu[i] = i;
    }
}

int hasEdge(int u, int v) {
    int ans,a = calc(u),b = calc(v);
    if(br[a][b] == 1) {
        br[a][b] = 0;
        br[b][a] = 0;
        ans = 0;
        dsu[b] = a;
        for(int i = 1; i <= k; i++) {
            br[a][i] = br[a][i]+br[b][i];
            br[i][a] = br[a][i];
        }
    }
    else {
        ans = 1;
        br[a][b]--;
        br[b][a]--;
    }
    return rand()%2;
}

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:29:9: warning: variable 'ans' set but not used [-Wunused-but-set-variable]
   29 |     int ans,a = calc(u),b = calc(v);
      |         ^~~

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