Go: package main
import (
	"fmt"
	"bufio"
	"os"
	"bytes"
	"strconv"
	"strings"
)

func nextInt(scanner *bufio.Scanner) int {
	scanner.Scan()
	num , _ :=  strconv.Atoi(scanner.Text())
	return num
}


func main() {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Split(bufio.ScanWords)

	N := nextInt(scanner)
	var A [][]int = make([][]int, N)
	for i:=0; i<N; i++ {
		A[i] = make([]int, N)
	}
	for i:=0; i<N; i++{
		idx := nextInt(scanner)
		cnt := nextInt(scanner)
		for j:=0; j<cnt; j++ {
			node := nextInt(scanner)
			A[idx-1][node-1] = 1
		}
	}
	var outBuffer bytes.Buffer
	for i:=0; i<N; i++ {
		outBuffer.WriteString(strings.TrimRight(fmt.Sprintf("%v",A[i])[1:], "]") + "\n")
	}
	fmt.Printf("%s", outBuffer.String())
}

C++: #include<iostream>
using namespace std;

struct noo{
  int yoko;
  int tate;
  int nn[];
};

noo t[1000000];
int n;
int k;


int main(){
  int adj[n+10][n+10];
  int num;
  cin>>n;
  int rin[n+1];
  int i=0,j=0;
  for(i=0;i<=n;i++){
    for(j=0;j<=n;j++){
      adj[i][j]=0;
    }
  }
  for(i=0;i<n;i++){
    cin>>num>>k;
    for(j=0;j<k;j++){
      cin>>rin[j];
      adj[num][rin[j]]=1;
    }
  }
  for(i=1;i<=n;i++){
    for(j=1;j<=n;j++){
      if(j)cout<<" ";
      cout<<adj[i][j];
    }
    cout<<endl;
  }
  return 0;
}

C++: #include<iostream>
using namespace std;

int main(){
  int n,u,k[100],ar[100][100],i;
  int l,s;
  cin>>n;
  int j;
  for(i=0;i<n;i++){
    cin>>u>>k[i];
    for(j=0;j<k[i];j++){
      cin>>ar[u][j];
    }
  }
  for(i=1;i<=n;i++){
    for(j=1;j<=n;j++){
      l=0;
      for(s=0;s<k[i-1];s++){
	if(j==ar[i][s]){
	  cout<<"1";
	  l=1;
	  break;
	}
      }       
      if(l==0)cout<<"0";
      if(j<n)cout<<" ";
    }
    cout<<endl;
  }

  return 0;
}

C++: #include<iostream>
using namespace std;
bool m[110][110];
int main()
{
    int n,u,k,v;
    cin>>n;
    for(int j=1;j<=n;j++)
    {
        cin>>u>>k;
        for(int i=1;i<=k;i++)
        {
            cin>>v;
            m[u][v]=1; //连边
        }
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=n;j++)
        {
            if(j!=1) cout<<" ";
            cout<<m[i][j];
        }
        cout<<endl;
    }
    return 0;
}

C++: #include <iostream>
#include <vector>
using namespace std;

int main(){
    int n;
    cin >> n;
    vector<vector<int> > A(n, vector<int>(n, 0));
    for(int i=0; i<n; ++i){
        int k;
        cin >> k;
        // 1~n???index?????¨????????????????????????????????????1????????????0~n-1????????????
        k -= 1;
        int u;
        cin >> u;
        for(int j=0; j<u; ++j){
            int v;
            cin >> v;
            v -= 1;
            A[k][v] = 1;
        }
    }
    
    for(int i=0; i<n; ++i){
        for(int j=0; j<n; ++j){
            cout << A[i][j];
            if(j != n-1)
            cout << " ";
        }
        cout << endl;
    }
}

C++: #include<cstdio>
#define MAX 100
int A[MAX][MAX] = {0};

int main()
{
	int n,u,k,v;
	scanf("%d", &n);
	for(int i=0; i<n; i++)
	{
		scanf("%d%d", &u, &k);
		for(int j=0; j<k; j++)
		{
			scanf("%d", &v);
			A[u-1][v-1] = 1;
		}
	}

	for(int i=0; i<n; i++)
	{
		for(int j=0; j<n; j++)
		{
			if(j) printf(" ");
			printf("%d", A[i][j]);
		}
		printf("\n");
	}

	return 0;

}

C++: #include<iostream>
using namespace std;
static const int N = 100;

int main(){
int M[N][N];
int n,u,v,k;

cin >> n;

for(int i = 0; i < n; i++){
  for(int j = 0;j < n; j++) M[i][j] = 0;
}

for(int i = 0;i < n;i++){
  cin  >> u >> k;
 u--;
 for(int j = 0; j < k; j++){
  cin >> v;
  v--;
  M[u][v] = 1;
  }
 }
 for(int i = 0;i < n; i++){
   for(int j = 0; j < n; j++){
   if(j)cout << " ";
   cout << M[i][j];
   }
   cout << endl;
  }
   return 0;
}

C++: #include <cstdio>
#include <iostream>
using namespace std;


static const int MAX_NUM = 100 + 1;

int main(void)
{
    int i, j;
    int num;
    int elem;
    int elemnum;
    int tmp;
    int matrix[MAX_NUM][MAX_NUM] = {0};


    scanf("%d", &num);
    for (i = 1; i <= num; i++) {
        scanf("%d %d", &elem, &elemnum);
        for (j = 1; j <= elemnum; j++) {
            scanf("%d", &tmp);
            matrix[elem][tmp] = 1;
        }
    }

    for (i = 1; i <= num; i++) {
        for (j = 1; j <= num; j++) {
            printf(" %d", matrix[i][j]);
        }
        printf("\n");
    }

    return 0;
}

C++: #include <iostream>
#include <vector>
using namespace std;

int main () {
    int n ;
    cin >> n;

    vector <int> v[n + 1];

    for (int i = 0; i < n; i++) {
        int x, no;
        cin >> x >> no;
        for(int j = 0; j < no; j++) {
            int temp;
            cin >> temp;
            v[x].push_back(temp);
        }
    }
	
//	for(int i=1;i<=n;i++){
//		for(int x:v[i]) cout<< x<< ' ';
//		cout<<endl;
//	}
//	cout<<endl;//deb
	
    for (int i = 1; i <= n; i++) {
        int pre = 1;

        for (int j = 0; j < v[i].size(); j++) {
            for (int k = pre ; k < v[i][j]; k++)
                cout << "0 ";
            
			cout << "1"<< ((v[i][j]==n)?'\n':' ');

            pre = v[i][j] + 1;
        }
        for (int j = pre; j <= n; j++)
            cout << "0" << ((j==n)?'\n':' ');
    }

}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
    int n,k,u,d;
    cin>>n;
    vector<vector<int> > Adj(n,vector<int>(n,0));
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            Adj[i][j]=0;
        }
    }
    for(int i=0;i<n;i++){
        cin>>k>>u;
        for(int j=0;j<u;j++){
            cin>>d;
            Adj[k-1][d-1]=1;
        }
    }
    
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            if(j==n-1){
                cout<<Adj[i][j]<<"\n";
            }else{
                cout<<Adj[i][j]<<" ";
            }
        }
    }
    
    return 0;
}

C++: #include <cstdio>
#include <iostream>
#include <algorithm>
#include <cstdlib>
#include <cmath>
#include <vector>
#include <ctime>
#include <cstring>
using namespace std;

int n;


int main(void){

	cin >> n;
	int suji[n];
	int	num[n];
	int adj[n][n];
	int ans[n][n];

	

	for(int i = 0; i < n; i++){
		
		cin >> suji[i] >> num[i];

		
		for(int j = 0; j < num[i]; j++){
			cin >> adj[i][j];
			adj[i][j] -= 1;
		}
	}

	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			ans[i][j] = 0;
		}
	}

	for(int i = 0; i < n; i++){
		for(int j = 0; j < num[i]; j++){
			ans[i][adj[i][j]] = 1;
		}
	}

	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			if(j == n - 1){
				cout << ans[i][j] << endl;
			}else{
				cout << ans[i][j] << " ";
			}
		}
	}



	
    return 0;
}

C++: #include <iostream>
using namespace std;
static const int N = 100;

int main(){
    int M[N][N]; // 0?????????????????£??\??????
    int n, u, k, v;
    
    cin >> n;
    
    for( int i = 0; i < n; i++){
        for( int j = 0; j < n; j++) M[i][j] = 0;
    }
    
    for(int i = 0; i < n; i++){
        cin >> u >> k;
        u--; // 0?????????????????????
        for( int j = 0; j < k; j++){
            cin >> v;
            v--; // 0?????????????????????
            M[u][v]  = 1; //u??¨v?????????????????????
        }
    }
    
    for ( int i = 0; i < n; i++){
        for (int j = 0; j < n; j++){
            if (j) cout << " "; // j = 0??\???????????????????????\?????§?????????????????\??????
            cout << M[i][j];
        }
        cout << endl;
    }
    
    return 0;
}

C++: #include<iostream>
using namespace std;
static const int N=100;

int main()
{
	int M[N][N];
	int n, u, k, v;

	cin >> n;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			M[i][j] = 0;
		}
	}
	for (int i = 0; i < n; i++) {
		cin >> u >> k;
		u--;
		for (int j = 0; j < n; j++) {
			cin >> v;
			v--;
			M[u][v] = 1;
		}
	}

	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			if (j)cout << " ";
			cout << M[i][j];
		}
		cout << endl;
	}

    return 0;
}