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cyho2015 2015-10-20 13:57

:verygood: :verygood: :verygood: :saujai:

smalleyes 2015-10-20 14:33

回復 3# 的帖子

thanks so much...

793076670 2015-10-20 14:39

回復 1# 的帖子

我要看看看看看看看

bbwden 2015-10-20 14:47

Thanks for sharing.

5643 2015-10-20 18:44

[table=98%][tr][td][table=98%][tr][td]Thanks a lot[/td][/tr][/table]




[/td][/tr][tr][td][/td][/tr][/table]

wings3612 2015-10-20 21:02

thanks for your sharing

talivong 2015-10-20 21:10

:verygood:

as2as 2015-10-21 00:00

内容hhhhhhhhhhhh

go1234 2015-10-24 01:23

Ggffdsaaaassddf

samlau16 2015-10-24 18:41

Thx for sharing

youio 2015-10-24 19:39

qqqqqqqqqqqqqqqqq

tol1231 2015-10-24 19:42

Thx very much

a09330903 2015-10-29 22:54

本帖隱藏的內容需要回復才可以瀏覽

sdu2 2015-10-30 09:52

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Ricks 2015-11-9 11:42

Great....nice and thanks!

Johntin 2015-11-9 11:53

ccccccccccccc

After_80 2015-11-10 01:29

感謝分享
真實自拍
thank you very much

MANGAKAN 2015-11-10 12:09

回復 1# 的帖子

Thankfully

love4321 2015-11-10 12:25

Thank you

hung.600426 2015-11-22 14:54

正正正正正正正正正正正正正正正正正正

morewei 2015-11-22 15:11

:verygood: :verygood:

無限sky 2015-11-22 15:24

ccccccccccc

erike 2015-11-22 15:52

Thanks thanks

man818 2015-11-22 16:10

支持一下支持你!!!

katgnow 2015-11-22 20:34

thanks for sharing

lzt2002 2015-11-22 21:36

/*

Name:

Copyright: lzt2002

Author: lzt2002

Date: 20/08/15 22:18

Description:
*/
#include<cmath>
#include<math.h>
#include<ctype.h>
#include<algorithm>
#include<bitset>
#include<cassert>
#include<cctype>
#include<cerrno>
#include<cfloat>
#include<ciso646>
#include<climits>
#include<clocale>
#include<complex>
#include<csetjmp>
#include<csignal>
#include<cstdarg>
#include<cstddef>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<ctime>
#include<cwchar>
#include<cwctype>
#include<deque>
#include<exception>
#include<fstream>
#include<functional>
#include<iomanip>
#include<ios>
#include<iosfwd>
#include<iostream>
#include<istream>
#include<iterator>
#include<limits>
#include<list>
#include<locale>
#include<map>
#include<memory>
#include<new>
#include<numeric>
#include<ostream>
#include<queue>
#include<set>
#include<sstream>
#include<stack>
#include<stdexcept>
#include<streambuf>
#include<string>
#include<typeinfo>
#include<utility>
#include<valarray>
#include<vector>
#include<string.h>
#include<stdlib.h>
#include<stdio.h>
using namespace std;
#define havetxt 0
#define shuru "input.txt"
#define shuchu "output.txt"
#define inf 0x7fffffff
#define esp 1e-9
#define mod 1000000007

typedef long long ll;

int u[22222],s[22222],v[22222],mark;
vector<int> adj[22222],G[22222];
int n,m,c;
int nin[22222],nout[22222];

void dfs1(int x)
{
    u[x]=1;
    for(int i=0;i<G[x].size();i++)
    {
        if(!u[G[x][i]]) dfs1(G[x][i]);
    }
    s[c++]=x;
}

void dfs2(int x)
{

if(u[x]!=0) return;
    u[x]=mark;
    for(int i=0;i<adj[x].size();i++)
    {
        if(!u[adj[x][i]]) dfs2(adj[x][i]);
    }
}

int main()
{
    int T;

cin>>T;

while(T--)

{

memset(u,0,sizeof(u));

memset(G,0,sizeof(G));

memset(adj,0,sizeof(adj));

mark=0;

c=0;



cin>>n>>m;
   
for(int i=0;i<m;i++)
   
{
   
    int a,b;
   
    cin>>a>>b;
   
   
        
G[a].push_back(b);
        
adj[b].push_back(a);
   
}
   

   
for(int i=1;i<=n;i++)
   
{
   
    if(!u[i]) dfs1(i);
   
}
   

   
memset(u,0,sizeof(u));

   
for(int i=n-1;i>=0;i--)
   
{
        
if(!u[s[i]])
        
{
        
++mark;
        
    dfs2(s[i]);
        
}
        }


if(mark==1)

{

cout<<0<<endl;

continue;

}



memset(nin,0,sizeof(nin));

memset(nout,0,sizeof(nout));



for(int i=1;i<=n;i++)

{

for(int j=0;j<G[i].size();j++)

{

if(u[i]!=u[G[i][j]])

{

nin[G[i][j]]++;

nout[i]++;

}

}

}



int nin0=0,nout0=0;

for(int i=1;i<=n;i++)

{

if(nin[i]==0)

{

nin0++;

}

else if(nout[i]==0)

{

nout0++;

}

}



cout<<max(nin0,nout0)<<endl;
    }

    return 0;
}

卍邪神卍 2015-11-23 00:17

回復 2# 的帖子

:loveeyes: :loveeyes: :hamsup: :hamsup:

jk25711770 2015-11-23 01:04

Cccccccccccccc

nomvn 2015-11-23 01:50

回復 2# 的帖子

ccccccccccccccc

nomvn 2015-11-23 01:51

回復 3# 的帖子

ccccccccccccccccccc

Panda999999 2015-11-23 06:43

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閒雜人等 2015-11-23 08:41

thank you for sharing :verygood:

19380112 2015-11-23 09:43

thanks for sharing :verygood: :verygood:

dick169 2015-11-23 10:06

:loveeyes: :loveeyes: :loveeyes: :loveeyes: :loveeyes: :loveeyes: :loveeyes: :loveeyes:

Gunbird 2015-11-23 10:10

thanks for sharing

flyinglipas 2015-12-1 14:44

Thank you for sharing

rockharder 2015-12-1 14:52

cccccccccccccccccccccccccccc

ericmahahaha 2015-12-1 14:55

回復 2# 的帖子

:loveliness: :loveliness: :loveliness: :loveliness:

giveson 2015-12-1 14:59

Thanks for sharing!

penny1234 2015-12-2 01:08

cccccccccccccc

qqqkkk 2015-12-13 23:50

:funk: :funk: :funk: :funk: :funk:

kasama_shin 2015-12-13 23:53

Thanks for sharing bro

desy428 2015-12-14 21:20

thxxxxxxxxxxxxxx

goodbaba 2015-12-14 21:47

:clap: :clap: :clap:

c9lover2009 2015-12-14 21:51

thanks for share

one9stand 2015-12-14 21:52

Thanks for sharing

CPKTVman 2015-12-14 21:54

cccccccccccccccccccc

yellowbee36 2015-12-14 21:59

:clap: :jump: :clap: :clap: :clap:

wai8899 2015-12-18 17:24

回復 1# 的帖子

wa...wa...wa...:loveeyes:

shevcbutlo 2015-12-18 17:44

回復 3# 的帖子

Thanks for share
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