Problem:
Score : 100 points

Problem Statement

Takahashi is going to set a 3-character password.

How many possible passwords are there if each of its characters must be a digit between 1 and N (inclusive)?

Constraints

1 \leq N \leq 9

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

Print the number of possible passwords.

Sample Input 1

2

Sample Output 1

8

There are eight possible passwords: 111, 112, 121, 122, 211, 212, 221, and 222.

Sample Input 2

1

Sample Output 2

1

There is only one possible password if you can only use one kind of character.

Solution in Rust (1.15.1) (judge verdict: Accepted)

use std::io::stdin;
use std::iter::Iterator;
use std::collections::VecDeque;
use std::collections::HashMap;

fn solve(cin: &mut ConsoleInputWrapper) {
    let n: i64 = cin.input().parse().unwrap();
    println!("{}",n*n*n);
    ()
}

//Other Functions Here

fn main() {
    let mut cin = ConsoleInputWrapper::new();
    solve(&mut cin);
}

fn factorization(value: i64) -> HashMap<i64, usize> {
    let sqrt = f64::sqrt(value.clone() as f64);
    let mut value = value;
    let mut map = HashMap::new();
    let mut p = 2;
    while p.clone() as f64 <= sqrt {
        let mut count = 0;
        while (value % p.clone()) == 0 {
            count += 1;
            value /= p.clone();
        }
        if count > 0 {
            map.insert(p.clone(), count);
        }
        p += 1;
    }
    if value != 1 {
        map.insert(value, 1);
    }
    map
}

fn gcd(a: i64, b: i64) -> i64 {
    if b == 0 {
        a
    } else {
        gcd(b.clone(), a % b)
    }
}

fn min(a: i32, b: i32) -> i32 {
    if a < b { a } else { b }
}

fn max(a: i32, b: i32) -> i32 {
    if a > b { a } else { b }
}

struct ConsoleInputWrapper {
    queue: VecDeque<String>
}

impl ConsoleInputWrapper {
    fn new() -> ConsoleInputWrapper {
        ConsoleInputWrapper {
            queue: VecDeque::new()
        }
    }
    fn input(&mut self) -> String {
        if self.queue.len() <= 0 {
            let mut s = String::new();
            stdin().read_line(&mut s).unwrap();
            let list: Vec<&str> = s.split_whitespace().collect();
            for string in list {
                self.queue.push_back(String::from(string));
            }
        }
        self.queue.pop_front().unwrap()
    }
}