Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func getScanner(fp *os.File) *bufio.Scanner {
	scanner := bufio.NewScanner(fp)
	scanner.Split(bufio.ScanWords)
	scanner.Buffer(make([]byte, 500001), 500000)
	return scanner
}

func getNextString(scanner *bufio.Scanner) string {
	scanner.Scan()
	return scanner.Text()
}

func getNextInt(scanner *bufio.Scanner) int {
	i, _ := strconv.Atoi(getNextString(scanner))
	return i
}

func main() {
	fp := os.Stdin
	if len(os.Args) > 1 {
		fp, _ = os.Open(os.Args[1])
	}

	scanner := getScanner(fp)
	writer := bufio.NewWriter(os.Stdout)

	n := getNextInt(scanner)
	g := make([][]int, n)

	for i := 0; i < n; i++ {
		g[i] = make([]int, n)
	}

	for i := 0; i < n; i++ {
		u := getNextInt(scanner)
		k := getNextInt(scanner)
		u--
		for ii := 0; ii < k; ii++ {
			v := getNextInt(scanner)
			v--
			g[u][v] = 1
		}
		fmt.Fprintln(writer, joinint(g[u], " "))
	}

	writer.Flush()
}

func joinint(a []int, sep string) string {
	n := len(a)
	ss := make([]string, n)
	for i := 0; i < n; i++ {
		ss[i] = fmt.Sprintf("%d", a[i])
	}
	return strings.Join(ss, sep)
}

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

int main()
{
    int M[N][N];  // オリジンの隣接行列
    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;
        }
    }

    // 頂点iが頂点jへのパスが存在するということ
    for (int i = 0; i < n; i++) {
        cin >> u >> k;
        u--;  // 0オリジンへの変換
        for (int j = 0; j < k; j++) {
            cin >> v;
            v--;  // 0オリジンへの変換
            M[u][v] = 1;  // uとvの間に辺を張る
        }
    }

    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 <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
const int maxx = 110;

int main()
{
	int n, m[maxx][maxx];
	int u, num, v;
	scanf("%d", &n);
	memset(m, 0, sizeof(m));
	for (int i = 1; i <= n; i++) {
		scanf("%d %d", &u, &num);
		for (int j = 1; j <= num; j++) {
			scanf("%d", &v);
			m[u][v] = 1;
		}
	}

	for (int i = 1; i <= n; i++)
		for (int j = 1; j <= n; j++)
			printf("%d%c", m[i][j], j == n ? '\n' : ' ');
		
	return 0;
}

C++: #include <iostream>

const int MAX_N = 100;

int main(void) {
  int Adj[MAX_N + 1][MAX_N + 1] = {0};
  
  int n = 0;

  std::cin >> n;

  for (int i = 1; i <= n; i++) {
    int u = 0;
    int k = 0;
    
    std::cin >> u;
    std::cin >> k;

    for (int j = 0; j < k; j++) {
      int v = 0;
      
      std::cin >> v;
      
      Adj[i][v] = 1;
      //      Adj[v][i] = 1;
    }
  }

  for (int i = 1; i <= n; i++) {
    for (int j = 1; j <= n; j++) {
      std::cout << Adj[i][j];

      if (j < n) {
	std::cout << " ";
      } else {
	std::cout << std::endl;
      }
    }
  }

  return 0;
}

C++: #include<iostream>

using namespace std;

int main(){
    int n;
    cin>>n;
    int a[110][110]={0};
    int u,k,v;
    for(int i=0;i<n;i++){
        cin>>u>>k;
        if(k==0)continue;
        for(int j=0;j<k;j++){
            cin>>v;
            a[u-1][v-1]=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;
    }
    return 0;
}

C++: #include<stdio.h>
 
int main(){
  int i,j,n,u,k,v;
  int data[101][101];
  scanf("%d",&n);
  for( i = 1; i <= n; i++){
    for( j = 1; j <= n; j++){
      data[i][j]=0;
      }
  }
  for(i = 0; i < n; i++){
    scanf("%d",&u);
    scanf("%d",&k);
    for(j = 0; j < k; j++){
      scanf("%d",&v);
      data[u][v]=1;
    }
  }
 
  for(i = 1;i <=n;i++ ){
    for(j = 1; j <=n;j++){
      if(j==n){
    printf("%d",data[i][j]);
      }else{
    printf("%d ",data[i][j]);
      }
    }
    printf("\n");
  }
  return 0;
}

C++: #include<iostream>
#define SIZE 100

using namespace std;

int main(void) {

	int n, c, v;
	int G[SIZE][SIZE];
	int A[SIZE][SIZE];

	cin >> n;

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

	for (int i = 0; i < n; i++) {
		cin >> v;
		cin >> c;
		for (int j = 0; j < c; j++) {
			cin >> G[i][j];
			int tmp = G[i][j];
			if (tmp > 0) {
				A[i][tmp - 1] = 1;
			}
		}
	}

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



}

C++: #include <stdio.h>
#define N 101

int main(){

  int u,k,i,j,v,n;
  int a[N][N];
  
  scanf("%d",&n);

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

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

  return 0;

}

C++: #include <bits/stdc++.h>
using namespace std;

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

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

    return 0;
}

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

int G[101][101];

int main()
{
	int n, i, j, a, b, e;
	scanf("%d", &n);
	for(i = 1; i <= n; i++){
		for(j = 1; j <= n; j++){
			G[i][j] = 0;
		}
	}
	for(i = 1; i <= n; i++){
	    scanf("%d %d", &a, &e);
		for(j = 1; j <= e; j++){
			scanf("%d", &b);
			G[a][b] = 1;
		}
	}
	for(i = 1; i <= n; i++){
		printf("%d", G[i][1]);
		for(j = 2; j <= n; j++){
			printf(" %d", G[i][j]);
		}
		printf("\n");
	}
	return 0;
}

C++: #include<iostream>
#include<map>
#include<vector>
#include<algorithm>
#include<cmath>
#include<climits>
#include<ctime>
#include<cstring>
#include<stack>
#include<queue>
#include<sstream>
#include<string>
#include<set>
#include<array>
#include<cassert>

#define ALL(v) (v).begin(),(v).end()
#define REP(i,p,n) for(int i=p;i<(int)(n);++i)
#define rep(i,n) REP(i,0,n)
#define DUMP(list) cout << "{ "; for(auto nth : list){ cout << nth << " "; } cout << "}" << endl
#define FOR(i,c) for(__typeof((c).begin())i=(c).begin();i!=(c).end();++i);

using namespace std;

int main(){
	
	int n;
	cin >> n;
	vector<vector<int>> ans(n,vector<int>(4,0));

	rep(i,n){
		int u,k;
		cin >> u >> k;	
		u--;
		rep(j,k){
			int v;
			cin >> v;
			v--;
			ans[u][v]=1;
		}
	}

	rep(i,n){
		rep(j,n-1){
			cout << ans[i][j] << " ";	
		}
		cout << ans[i][n-1] << endl;
	}

	return 0;
}

C++: #include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define ll long long
using namespace std;

int main(){
    int n;
    int A[100+1][100+1];

    cin>>n;

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

    rep(i,n){
        int u,k;
        cin>>u>>k;
        rep(j,k){
            int v;
            cin>>v;
            A[u][v]=1;
        }
    }

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


    return 0;
}