Go: package main

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

var sc = bufio.NewScanner(os.Stdin)

func nextInt() int {
	sc.Scan()
	i, _ := strconv.Atoi(sc.Text())
	return i
}
func main() {
	sc.Split(bufio.ScanWords)

	n := nextInt()

	graph := make([][]int, n)
	for i := 0; i < n; i++ {
		graph[i] = make([]int, n)
	}
	for i := 0; i < n; i++ {
		s := nextInt()
		t := nextInt()
		if t == 0 {
			continue
		}
		for i := 0; i < t; i++ {
			u := nextInt()
			graph[s-1][u-1] = 1
		}
	}
	for i := range graph {
		for j := range graph[i] {
			if j == n-1 {
				fmt.Printf("%d\n", graph[i][j])
			} else {
				fmt.Printf("%d ", graph[i][j])
			}
		}
	}
}

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

using namespace std;

void to_adjacent_matrix(vector<vector<int> >& adjacent_list, vector<vector<int> >& adjacent_matrix);

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

    string line;
    getline(cin, line); // skip first newline character

    vector<vector<int> > vertex(n, vector<int>(n, -1));
    for (int i = 0; i < n; ++i) {
        getline(cin, line);

        string tmp;
        stringstream ss(line);
        int j = 0;
        while (getline(ss, tmp, ' ')) {
            if (j == 0) {
                ++j;
                continue;
            }

            vertex[i][j - 1] = stoi(tmp);
            ++j;
        }
    }

    vector<vector<int> > adjacent(n, vector<int>(n, 0));
    to_adjacent_matrix(vertex, adjacent);

    for (int i = 0; i < n; ++i) {
        cout << adjacent[i][0];
        for (int j = 1; j < n; ++j)
            cout << ' ' << adjacent[i][j];
        cout << '\n';
    }
}

void to_adjacent_matrix(vector<vector<int> >& adjacent_list, vector<vector<int> >& adjacent_matrix)
{
    int n = adjacent_list.size();

    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < n && adjacent_list[i][j] != -1; ++j) {
            int adjacent = adjacent_list[i][j] - 1;
            if (adjacent <= 0 || adjacent > n)
                continue;

            adjacent_matrix[i][adjacent] = 1;
        }
    }
}

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

int main(){
  int n, u, k, v;
  cin >> n;
  int A[n * n] = {0};

  for(int i = 0; i < n; i++){
    cin >> u >> k;
    while(k--){
      cin >> v;
      A[(u - 1) * n + (v - 1)] = true;
    }
  }

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

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

using namespace std;

const int edge = 1;
const int no_edge = 0;

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

  // init
  vector<vector<int>> list_graph(
    vertex_num,
    vector<int>(vertex_num, 0)
  );

  // convert
  for(int i = 0; i < vertex_num; i++) {
    int vertex_label;
    int adjacency_vertex_num;
    cin >> vertex_label >> adjacency_vertex_num;

    for(int j = 0; j < adjacency_vertex_num; j++) {
      int adjacency_vertex_label;
      cin >> adjacency_vertex_label;

      list_graph[vertex_label - 1][adjacency_vertex_label - 1] = edge;
    }
  }


  // print
  for(int i = 0; i < vertex_num; i++) {
    for(int j = 0; j < vertex_num; j++) {
      cout << list_graph[i][j];

      if(j != vertex_num - 1) {
        cout << ' ';
      }
    }
    cout << endl;
  }
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin >> n;
    vector<vector<int> > mat(n,vector<int>(n,0));
    for(int i=0;i<n;i++){
        int u,k;
        cin >> u >> k;
        for(int j=0;j<k;j++){
            int v;
            cin >> v;
            mat.at(u-1).at(v-1)=1;
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            cout << mat.at(i).at(j);
            if(j==n-1) cout << endl;
            else cout << " ";
        }
    }
}

C++: #include <iostream>
#include <string>
#include <vector>
#include <queue>
using namespace std;
typedef vector<vector<int>> matrix;

int main()
{
    // 入力
    int N;
    cin >> N;
    matrix G(N + 1, vector<int>(N + 1, 0));

    for (int i = 0; i < N; i++)
    {
        int u, k;
        cin >> u >> k;
        for (int j = 0; j < k; j++)
        {
            int v;
            cin >> v;
            G[u][v] = 1;
        }
    }

    for (int i = 1; i <= N; i++)
    {
        for (int j = 1; j <= N; j++)
        {
            cout << G[i][j];
            if (j != N)
            {
                cout << " ";
            }
        }
        cout << endl;
    }
}

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

int main() {
    int N = 0;
    int u, k, v;
    int G[101][101] = {};
    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);
            G[u][v] = 1;
        }
    }
    
    for (int i = 1; i <= N; i++) {
        for (int j = 1; j <= N; j++) {
            if (j != 1) cout << " ";
            cout << G[i][j];
        }
        cout << endl;
    }
    
    return 0;
}

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

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
#define mp make_pair
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define MOD 1000000007

int n;
int e1[105][105];
int main(){
  scanf("%d",&n);
  for (int i = 0; i < n; i++) {
    int u,k;
    scanf("%d%d",&u,&k);
    u--;
    for(int j = 0; j < k; j++){
      int a;
      scanf("%d",&a);
      a--;
      e1[u][a] = 1;
    }
  }
  for(int i = 0; i < n; i++){
    for(int j = 0; j < n; j++){
      printf("%d",e1[i][j]);
      if(j!=n-1) printf(" ");
    }
    printf("\n");
  }
  return 0;
}

C++: // 最長共通部分列 問題
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<stack>
#include<algorithm>
#include<iostream>
#include<cmath>
#include<vector>

using namespace std;

#define MAX_N 100
// 無効な値の定義
const int INV = -1;

int main(void)
{
    int n, u, num, v_num;
    int ary_adj[MAX_N];

    for(int i = 0; i < MAX_N; i++)
    {
        // 配列の初期化
        ary_adj[i] = 0;
    }

    cin >> n;

    for(int i = 0; i < n; i++)
    {
        cin >> u;
        cin >> num;

        for(int j = 0; j < num; j++)
        {
            // 隣接点を記憶する
            cin >> v_num;
            ary_adj[v_num] = 1;
        }

        // 結果の表示をする
        for(int k = 1; k <= n; k++)
        {
            if( k > 1 )
            {
                cout << " ";
            }

            if( ary_adj[k] == 1 )
            {
                cout << 1;
                ary_adj[k] = 0;
            }
            else
            {
                cout << 0;
            }
        }

        cout << endl;
    }

    return 0;
}

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

#pragma warning( disable:4996 )

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 < 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 <stdio.h>
#define N 101

int main(){

  int u,k,i,j,v,n;
  int a[N][N];
  
  /*for(i=1;i<=N;i++){
    for(j=1;j<=N;j++){
      a[i][j]=0;
    }
  }
  */
  scanf("%d",&n);

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

  return 0;

}