BZOJ 2079: [Poi2010]Guilds

/**************************************************************
    Problem: 2079
    User: BeiYu
    Language: C++
    Result: Accepted
    Time:1284 ms
    Memory:2068 kb
****************************************************************/
 
#include <bits/stdc++.h>
using namespace std;
 
const int N = 2e5+50;
 
int n,m;
int d[N];
 
inline int in(int x=0,char ch=getchar()) { while(ch>‘9‘ || ch<‘0‘) ch=getchar();
    while(ch>=‘0‘ && ch<=‘9‘) x=x*10+ch-‘0‘,ch=getchar();return x; }
int main() {
    n=in(),m=in();
    for(int i=1,u,v;i<=m;i++) u=in(),v=in(),(u!=v?d[u]++,d[v]++:0);
    for(int i=1;i<=n;i++) if(!d[i]) return puts("NIE");
    return puts("TAK"),0;
}