graph.rs

use std::io::*;
use std::str::*;

//const MOD: i32 = 1000000007;

fn read<T: FromStr>() -> Option<T> {
    let stdin = stdin();
    let s = stdin
        .bytes()
        .map(|c| c.unwrap() as char)
        .take_while(|c| !c.is_whitespace())
        .collect::<String>();
    s.parse::<T>().ok()
}

fn main() {
    let n: usize = read().unwrap();


    let mut m: [[usize; 100]; 100] = [[0; 100]; 100];
    for _ in 0..n {
        let mut u: usize = read().unwrap();
        let mut k: usize = read().unwrap();
        u -= 1;
        for _ in 0..k {
            let mut tmp: usize = read().unwrap();
            tmp -= 1;
            m[u][tmp] = 1;
        }
    }

    for i in 0..n {
        for j in 0..n {
            if j >= 1 {
                print!(" ");
            }
            print!("{}", m[i][j]);
        }
        println!("");
    }
}


/*
4
1 2 2 4
2 1 4
3 0
4 1 3
*/