Submission #162641

#	Time	Username	Problem	Language	Result	Execution time	Memory
162641		demetre	Game (IOI14_game)	C++14	Compilation error	0 ms	0 KiB

game

#include<bits/stdc++.h>

using namespace std;

int n, a, b, f[10001][10001], fix[10001], p[10001];

int getcol (int l){
	if (l == p[l])
		return l;
		
	return getcol (p[l]);
}
void col (int k, int l){
	int w = getcol(k);
	int u = getcol(l);
	
	p[w] = u;
	fix[u]+=fix[w];
	fix[w] = 0;
	p[k] = l;
	
	for (int i = 0; i < n; i++){
		f[u][i]+=f[w][i];
		f[i][u]+=f[i][w];
	}
}

int main (){
	cin >> n;
	for (int i=0; i<n; i++){
		p[i] = i;
		fix[i] = 1;
	}
	
	for (int i=1; i<=n*(n-1)/2; i++){
		cin >> a >> b;
		a = getcol(a);
		b = getcol(b);
		f[a][b]++;
		f[b][a]++;
		if (f[a][b] == fix[a]*fix[b]){
			cout << "YES" << endl;
			if (fix[a] >= fix[b])	
				swap(a, b);
			col (a, b);
		}
		else
			cout << "NO" << endl;
	}
}	

Compilation message (stderr)

/tmp/ccV9JMwh.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/cc6q57ie.o:game.cpp:(.text.startup+0x0): first defined here
/tmp/ccV9JMwh.o: In function `main':
grader.cpp:(.text.startup+0x14): undefined reference to `initialize(int)'
grader.cpp:(.text.startup+0x57): undefined reference to `hasEdge(int, int)'
collect2: error: ld returned 1 exit status