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<cstdio>

void InitializeIntegerMatrix(int nmbr_of_rows, int nmbr_of_columns, int m[][100]){
	for (int row = 0; row < nmbr_of_rows; ++row) {
		for (int column = 0; column < nmbr_of_columns; ++column)
			m[row][column] = 0;
	}
}

void ListToMatrix(int number_of_vertices, int adjmtr[][100]){
	int vertex_from, vertex_to, degree_out;	
	for (int vertex_i = 0; vertex_i < number_of_vertices; ++vertex_i) {
		scanf("%d %d", &vertex_from, &degree_out);
		vertex_from--; //0?????????????????????
		for (int vertex_out_i = 0; vertex_out_i < degree_out; ++vertex_out_i) {
			scanf("%d", &vertex_to);
			vertex_to--; //0?????????????????????
			adjmtr[vertex_from][vertex_to] = 1;
		}
	}
}

void PrintIntegerMatrix(int nmbr_of_rows, int nmbr_of_columns, int mtr[][100]){
	for (int row = 0; row < nmbr_of_rows; ++row) {
		for (int column = 0; column < nmbr_of_rows; ++column) {
			if(column > 0)
				printf(" ");
			printf("%d", mtr[row][column]);
		}
		printf("\n");
	}
}

int main(void){
	int number_of_vertices;
	scanf("%d", &number_of_vertices);
	int n = number_of_vertices;
	int adjmtr[100][100];
	InitializeIntegerMatrix(n, n, adjmtr);
	ListToMatrix(n, adjmtr);
	PrintIntegerMatrix(n, n, adjmtr);
	return 0;
}

C++: #include<iostream>
using namespace std;
#define  NIL 0
#define N 100

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

  cin >> n;

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

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

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

C++: #include <iostream>
using namespace std;
int main(){
  int n,u[100],k[100]={},v[100][100];
  cin >> n;
  for(int i=0; i<n; i++){
    cin >> u[i];
    int x;
    cin >> x;
    k[u[i]-1]+=x;

    for(int j=0; j<k[i]; j++)
      cin >> v[i][j];
  }

  for(int i=0; i<n; i++){
    int count=0;
    for(int j=0; j<4; j++){
      if(v[i][count]==j+1){
        cout << 1;
        count++;
      }

      else
        cout << 0;

      if(j!=3)
        cout << " ";
      }
      cout << endl;
    }
  }

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<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<iostream>

using namespace std;

#define N 100

int M[N][N];

int main(){
    int n,u,k,v;
  
    cin >> n;
    for(int i = 0;i < n;++i){
        cin >> u >> k;
        // 頂点を移動する
        u--;
        // 頂点の数だけ回す
        for(int j = 0;j < k;++j){
            cin >> v;
            --v;    // ずらす
            M[u][v] = 1;
        }
    }
    
    for(int i = 0;i < n;++i){
        for(int j = 0;j < n;++j){
            // 2個目からは空白が必要
            if(j){
                cout << " ";
            }
            cout << M[i][j];
        }
        cout << endl;
    }
    
    return 0;}

C++: #define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
#define INFTY (1<<21)
using namespace std;
static const int N = 100;

int main() {
	int n;
	int M[N][N];
	cin >> n;
	int u, k;
	int index;

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

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

}

C++: #include <iostream>
#include <utility>
#include <string>
#include <algorithm>
#include <set>
#include <deque>
#include <vector>
#define MAX 10010
#define rep(i,p) for(int i=0;i<p;i++)
#define pb push_back
using namespace std;
int n,hoge,foo;
int graph[MAX][MAX] = {0};
int main(){
  cin >> n;
  rep(i,n) {
    cin >> hoge >> foo;
    rep(j,foo) {
      cin >> hoge;
      graph[i][hoge-1] = 1;
    }
  }
  rep(i,n) {
    rep(j,n) cout << graph[i][j] << " ";
    cout << endl;
  }
  return 0;
}