Problem:
Score : 200 points

Problem Statement

Raccoon is fighting with a monster.

The health of the monster is H.

Raccoon can use N kinds of special moves. Using the i-th move decreases the monster's health by A_i.
There is no other way to decrease the monster's health.

Raccoon wins when the monster's health becomes 0 or below.

If Raccoon can win without using the same move twice or more, print Yes; otherwise, print No.

Constraints

1 \leq H \leq 10^9

1 \leq N \leq 10^5

1 \leq A_i \leq 10^4

All values in input are integers.

Input

Input is given from Standard Input in the following format:

H N
A_1 A_2 ... A_N

Output

If Raccoon can win without using the same move twice or more, print Yes; otherwise, print No.

Sample Input 1

10 3
4 5 6

Sample Output 1

Yes

The monster's health will become 0 or below after, for example, using the second and third moves.

Sample Input 2

20 3
4 5 6

Sample Output 2

No

Sample Input 3

210 5
31 41 59 26 53

Sample Output 3

Yes

Sample Input 4

211 5
31 41 59 26 53

Sample Output 4

No

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

fn main() {
    use std::io::{stdin, stdout, BufRead, BufReader, BufWriter, Write};
    let stdin = stdin();
    let stdin = BufReader::new(stdin.lock());
    let stdout = stdout();
    let mut stdout = BufWriter::new(stdout.lock());
    let mut lines = stdin.lines();
    let a: Vec<u32> = lines.next().unwrap().unwrap().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let total: u32 = lines.next().unwrap().unwrap().split_whitespace().map(|s| s.parse::<u32>().unwrap()).sum();

    let ans = if total >= a[0] { "Yes" } else { "No" };
    writeln!(stdout, "{}", ans).unwrap();
}