OJ Board

Oops..had forgot one case...saw it in the link..thanks a lot!

V

I am getting RE continuously..:-(

#include<iostream>
#include<vector>
using namespace std;
typedef vector<int> vi;
class UnionFind{
private: vi p;

public: UnionFind(int N) { p.assign(N+1,-1);}
void reset(int N) { p.clear(); p.assign(N+1, -1);}
int findSet(int i) {if (p[i] < 0) return i; else ...