Submission #429561

#	Time	Username	Problem	Language	Result	Execution time	Memory
429561		TLP39	Game (IOI14_game)	C++14	100 / 100	504 ms	25480 KiB

game

#include "game.h"
#include<bits/stdc++.h>

int n;
std :: vector<int> ver[1503];
int par[1503];
int link[1503][1503];

void initialize(int N) {
    n=N;
    for(int i=0;i<n;i++)
    {
        par[i]=i;
        ver[i].push_back(i);
    }
    memset(link,0,sizeof link);
}

int hasEdge(int u, int v) {
    int x=par[u],y=par[v];
    if(link[x][y]!=(ver[x].size())*(ver[y].size())-1)
    {
        link[x][y]++;
        link[y][x]++;
        return 0;
    }
    for(int i=0;i<ver[y].size();i++)
    {
        ver[x].push_back(ver[y][i]);
        par[ver[y][i]]=x;
    }
    ver[y].clear();
    for(int i=0;i<n;i++)
    {
        if(!ver[i].size() || i==x) continue;
        link[x][i]+=link[y][i];
        link[y][i]=0;
        link[i][y]=0;
        link[i][x]=link[x][i];
    }
    return 1;
}

Compilation message (stderr)

game.cpp: In function 'int hasEdge(int, int)':
game.cpp:21:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     if(link[x][y]!=(ver[x].size())*(ver[y].size())-1)
      |        ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
game.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i=0;i<ver[y].size();i++)
      |                 ~^~~~~~~~~~~~~~

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