Go: package main

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

const N = 100

func answer(reader io.Reader) string {
	sc := bufio.NewScanner(reader)
	sc.Split(bufio.ScanWords)

	sc.Scan()
	n, _ := strconv.Atoi(sc.Text())

	var M [N][N]int
	for i := 0; i < n; i++ {
		sc.Scan()
		u, _ := strconv.Atoi(sc.Text())
		sc.Scan()
		k, _ := strconv.Atoi(sc.Text())
		u--
		for j := 0; j < k; j++ {
			sc.Scan()
			v, _ := strconv.Atoi(sc.Text())
			v--
			M[u][v] = 1
		}
	}

	var out bytes.Buffer
	for i := 0; i < n; i++ {
		for j := 0; j < n; j++ {
			if j != 0 {
				out.WriteString(" ")
			}
			out.WriteString(fmt.Sprintf("%d", M[i][j]))
		}
		out.WriteString("\n")
	}

	return strings.TrimRight(out.String(), "\n")
}

func main() {
	fmt.Println(answer(os.Stdin))
}

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

#define check cout<<"-------"<<endl
#define debug(x) cout<<x<<endl;

#define N 101

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    int a[N][N] = {};
    int n;
    cin>>n;
    
    int u, k, v;
    for(int i = 0; i < n; i++) {
        cin>>u>>k;
        
        for(int j = 0; j < k; j++) {
            cin>>v;
            a[u][v] = 1;
        }
    }
    
    int i, j;
    for(i = 1; i <= n; i++) {
        for(j = 1; j < n; j++) {
            cout<<a[i][j]<<' ';
        }
        cout<<a[i][j]<<endl;
    }
    
    return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>

using namespace std;
const int maxn=100+10;
int n;
int g[maxn][maxn];
int main()
{
//    freopen("in.txt","r",stdin);
    scanf("%d",&n);
    int no,cnt,dd;
    memset(g,0,sizeof(g));
   for(int i=0;i<n;i++)
    {
        scanf("%d%d",&no,&cnt);
        for(int j=0;j<cnt;j++)
        {
            scanf("%d",&dd);
            g[no-1][dd-1]=1;
        }
    }
    for(int i=0;i<n;i++)
    {
        for(int j=0;j<n;j++)
        {
            if(j) printf(" ");
            printf("%d",g[i][j]);
        }
        printf("\n");
    }

    return 0;
}

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

int main() {
    ll n;
    cin >> n;
    vector<vector<ll>> mat(n,vector<ll>(n,0));
    for(ll i=0;i<n;i++) {
        ll u,k;
        cin>>u>>k;
        for(ll j=0;j<k;j++) {
            ll tmp;
            cin>>tmp;
            mat[u-1][tmp-1] = 1;
        }
    }
    for(ll i=0;i<n;i++) {
        for(ll j=0;j<n;j++) {
            if(j<n)cout << mat[i][j] << " ";
            else cout << mat[i][j];
        }
        cout << endl;
    }
}

C++: #include<iostream>
#include<string>
#include <vector>
#include <stack>
#include <queue>
#include <list>
#include <algorithm>
#include <cstdlib>
using namespace std;
int ctoi(char c) {
	switch (c) {
	case '0': return 0;
	case '1': return 1;
	case '2': return 2;
	case '3': return 3;
	case '4': return 4;
	case '5': return 5;
	case '6': return 6;
	case '7': return 7;
	case '8': return 8;
	case '9': return 9;
	default: return 0;
	}
}

int main() {
	vector<vector<int> > M(100,vector<int>(100,0));
	int N, U, K, V;
	cin >> N;
	int i, j;
	for (i = 0; i < N; i++) {
		for (j = 0; j < N; j++) {
			M.at(i).at(j)=0;
		}
	}
	for (i = 0; i < N; i++) {
		cin >> U >> K;
		U--;
		for (j = 0; j < K; j++) {
			cin >> V;
			V--;
			M.at(U).at(V) = 1;
		}
	}
	for (i = 0; i < N; i++) {
		for (j = 0; j < N; j++) {
			if (j) {
				cout << " ";
			}
			cout << M.at(i).at(j);
		}
		cout << endl;
	}
}

C++: #include <bits/stdc++.h>
using namespace std;
#define _GLIBCXX_DEBUG
typedef long long ll;
typedef pair<ll, ll> P;
typedef pair<pair<int, int>, int> PP;
const ll INF = 1LL << 60;
const ll MOD = 1000000007;
const int MAX = 1000000000;

int GCD(int a, int b) { return b ? GCD(b, a % b) : a; }
//------------------------------------------------------------------------------------------------------------------------------

int main(void) {
    int N;
    cin >> N;
    vector<vector<int>> G(N);
    for(int i = 0; i < N; i++) {
        int u, k;
        cin >> u >> k;
        u--;
        for(int i = 0; i < k; i++) {
            int v;
            cin >> v;
            v--;
            G[u].push_back(v);
        }
    }
    for(int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++) {
            int ans = 0;
            for (auto v : G[i]) {
                if(j==v){
                    ans = 1;
                }
            }
            cout << ans;
            if(j<N-1)cout<<' ';
        }
        cout << endl;
    }
}

C++: #include <iostream>
#include <string>
#include <vector>


using namespace std;


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


  vector< vector<int> > a;
  for(int i=0;i<n;i++){
    int u;
    int k;
    cin >> u >> k;
    vector<int> tmpa;
    for(int j=0;j<k;j++){
      int tmp;
      cin >> tmp;
      tmpa.push_back(tmp);
    }

    a.push_back(tmpa);
  }

  
  int a2[n][n]={0};  
  for(int i=0;i<n;i++){
    for(int j=0;j<(int)a[i].size();j++){
      a2[i][a[i][j]-1] = 1;
    }
  }

  for(int i=0;i<n;i++){
    for(int j=0;j<n;j++){
      if(j!=0)cout << " ";
      cout << a2[i][j];
    }
    cout << endl;
  }
      
  
}

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++) {
        printf("%d", matrix[i][1]);
        for (j = 2; j <= num; j++) {
            printf(" %d", matrix[i][j]);
        }
        printf("\n");
    }

    return 0;
}

C++: #include <iostream>

using namespace std;



int main() {

	int a[100][100] = {{0}};

	int n;

	cin >> n;

	int u, k, v;

	for ( int i = 0; i < n; i++ ) {

		cin >> u >> k;

		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;

	}

}

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

int n;
int M[101][101];
int main() {
    cin >> n;

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

    for (int l = 1; l <= n; ++l) {
        for (int i = 1; i <= n; ++i) {
            cout << M[l][i];
            if (l != n && i != n) cout << " ";
        }
        cout << endl;
    }

    return 0;
}

C++: #include<iostream>
#include<vector>
using namespace std;
int main() {
	int point_number;
	cin >> point_number;
	vector<vector<int>>v(point_number);
	for (int i = 0;i < point_number;i++) {
		int point_name;
		cin >> point_name;
		v[i].push_back(point_name);
		int adj_point_number;
		cin >> adj_point_number;
		v[i].push_back(adj_point_number);
		for (int j = 0;j < adj_point_number;j++) {
			int adj_point_name;
			cin >> adj_point_name;
			v[i].push_back(adj_point_name);

		}

	}
	vector<vector<int>>ans(point_number, vector<int>(point_number));
	for (int i = 0;i < point_number;i++) {
		for (int j = 0;j < v[i][1];j++) {
			ans[v[i][0] - 1][v[i][j + 2] - 1] = 1;

		}


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