Problem:
Score : 400 points

Problem Statement

You are given integers N and M.

Consider a sequence a of length N consisting of positive integers such that a_1 + a_2 + ... + a_N = M. Find the maximum possible value of the greatest common divisor of a_1, a_2, ..., a_N.

Constraints

All values in input are integers.

1 \leq N \leq 10^5

N \leq M \leq 10^9

Input

Input is given from Standard Input in the following format:

N M

Output

Print the maximum possible value of the greatest common divisor of a sequence a_1, a_2, ..., a_N that satisfies the condition.

Sample Input 1

3 14

Sample Output 1

2

Consider the sequence (a_1, a_2, a_3) = (2, 4, 8). Their greatest common divisor is 2, and this is the maximum value.

Sample Input 2

10 123

Sample Output 2

3

Sample Input 3

100000 1000000000

Sample Output 3

10000

Solution in Rust (1.15.1) (judge verdict: Wrong Answer)

fn main() {
    let mut buf = String::new();
    let handle = std::io::stdin();
    handle.read_line(&mut buf).unwrap();
    let info: Vec<isize> = buf.trim().split_whitespace().map(|a| a.parse().unwrap()).collect();
    let mut count = 1;
    let max = info[1] / info[0];
    let mut ans = count;
    let mut weight = 1;
    loop {
        if info[1] % count == 0 {
            if max >= count {
                ans = count;
            } else {
                break;
            }
        }
        if count % 2 == 0 {
            weight = 2;
        }
        count += weight;
    }
    println!("{}", ans);
}