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#include <iostream>
#include <cstdio>
#include <vector>
 
using namespace std;
 
#define Max 10010
 
vector<int> Graph[Max];
int Low[Max],Num[Max],Padre_Nodo[Max];
bool Visi[Max];
int Act,Ans,Hijos_root,Root;
 
void DFS(int Padre){
	Low[Padre]=Num[Padre]=Act;
	Act++;
	Visi[Padre]=true;
	for(int i=0;i<Graph[Padre].size();i++){
		int Hijo=Graph[Padre][i];
		if(Visi[Hijo]==false){
			Padre_Nodo[Hijo]=Padre;
			DFS(Hijo);
			if(Padre==Root){
				Hijos_root++;
			}
			if(Low[Hijo]>=Num[Padre] && Padre!=Root){
				Ans++;
			}
			Low[Padre]=min(Low[Padre],Low[Hijo]);
		}else if(Padre_Nodo[Padre]!=Hijo && Padre!=Root){
			Low[Padre]=min(Low[Padre],Num[Hijo]);
		}
	}
}
 
int main(){
	int n,m,a,b;
	while(cin>>n>>m){
		if(n==m && m==0) break;
		for(int i=0;i<=n;i++){
			Graph[i].clear();
			Low[i]=0;
			Num[i]=0;
			Padre_Nodo[i]=-1;
			Visi[i]=false;
		}
		while(m--){
			cin>>a>>b;
			Graph[a].push_back(b);
			Graph[b].push_back(a);
		}
		Ans=0; Act=0;
		for(int i=1;i<=n;i++){
			if(Visi[i]==false){
				Root=i; Hijos_root=0;
				DFS(Root);
				if(Hijos_root>=2) Ans++;
			}
		}
		cout<<Ans<<endl;
	}
	return 0;
}

Main.java:1: error: illegal character: '#'
#include <iostream>
^
Main.java:1: error: class, interface, or enum expected
#include <iostream>
         ^
Main.java:2: error: illegal character: '#'
#include <cstdio>
^
Main.java:3: error: illegal character: '#'
#include <vector>
^
Main.java:7: error: illegal character: '#'
#define Max 10010
^
Main.java:7: error: class, interface, or enum expected
#define Max 10010
        ^
Main.java:10: error: class, interface, or enum expected
int Low[Max],Num[Max],Padre_Nodo[Max];
^
Main.java:11: error: class, interface, or enum expected
bool Visi[Max];
^
Main.java:12: error: class, interface, or enum expected
int Act,Ans,Hijos_root,Root;
^
Main.java:14: error: class, interface, or enum expected
void DFS(int Padre){
^
Main.java:16: error: class, interface, or enum expected
	Act++;
	^
Main.java:17: error: class, interface, or enum expected
	Visi[Padre]=true;
	^
Main.java:18: error: class, interface, or enum expected
	for(int i=0;i<Graph[Padre].size();i++){
	^
Main.java:18: error: class, interface, or enum expected
	for(int i=0;i<Graph[Padre].size();i++){
	            ^
Main.java:18: error: class, interface, or enum expected
	for(int i=0;i<Graph[Padre].size();i++){
	                                  ^
Main.java:20: error: class, interface, or enum expected
		if(Visi[Hijo]==false){
		^
Main.java:22: error: class, interface, or enum expected
			DFS(Hijo);
			^
Main.java:23: error: class, interface, or enum expected
			if(Padre==Root){
			^
Main.java:25: error: class, interface, or enum expected
			}
			^
Main.java:28: error: class, interface, or enum expected
			}
			^
Main.java:30: error: class, interface, or enum expected
		}else if(Padre_Nodo[Padre]!=Hijo && Padre!=Root){
		^
Main.java:32: error: class, interface, or enum expected
		}
		^
Main.java:38: error: class, interface, or enum expected
	while(cin>>n>>m){
	^
Main.java:40: error: class, interface, or enum expected
		for(int i=0;i<=n;i++){
		^
Main.java:40: error: class, interface, or enum expected
		for(int i=0;i<=n;i++){
		            ^
Main.java:40: error: class, interface, or enum expected
		for(int i=0;i<=n;i++){
		                 ^
Main.java:42: error: class, interface, or enum expected
			Low[i]=0;
			^
Main.java:43: error: class, interface, or enum expected
			Num[i]=0;
			^
Main.java:44: error: class, interface, or enum expected
			Padre_Nodo[i]=-1;
			^
Main.java:45: error: class, interface, or enum expected
			Visi[i]=false;
			^
Main.java:46: error: class, interface, or enum expected
		}
		^
Main.java:49: error: class, interface, or enum expected
			Graph[a].push_back(b);
			^
Main.java:50: error: class, interface, or enum expected
			Graph[b].push_back(a);
			^
Main.java:51: error: class, interface, or enum expected
		}
		^
Main.java:52: error: class, interface, or enum expected
		Ans=0; Act=0;
		       ^
Main.java:53: error: class, interface, or enum expected
		for(int i=1;i<=n;i++){
		^
Main.java:53: error: class, interface, or enum expected
		for(int i=1;i<=n;i++){
		            ^
Main.java:53: error: class, interface, or enum expected
		for(int i=1;i<=n;i++){
		                 ^
Main.java:55: error: class, interface, or enum expected
				Root=i; Hijos_root=0;
				        ^
Main.java:56: error: class, interface, or enum expected
				DFS(Root);
				^
Main.java:57: error: class, interface, or enum expected
				if(Hijos_root>=2) Ans++;
				^
Main.java:58: error: class, interface, or enum expected
			}
			^
Main.java:61: error: class, interface, or enum expected
	}
	^
Main.java:63: error: class, interface, or enum expected
}
^
44 errors

Standard output is empty