Problem:
Score : 200 points

Problem Statement

A ball will bounce along a number line, making N + 1 bounces. It will make the first bounce at coordinate D_1 = 0, and the i-th bounce (2 \leq i \leq N+1) at coordinate D_i = D_{i-1} + L_{i-1}.

How many times will the ball make a bounce where the coordinate is at most X?

Constraints

1 \leq N \leq 100

1 \leq L_i \leq 100

1 \leq X \leq 10000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N X
L_1 L_2 ... L_{N-1} L_N

Output

Print the number of times the ball will make a bounce where the coordinate is at most X.

Sample Input 1

3 6
3 4 5

Sample Output 1

2

The ball will make a bounce at the coordinates 0, 3, 7 and 12, among which two are less than or equal to 6.

Sample Input 2

4 9
3 3 3 3

Sample Output 2

4

The ball will make a bounce at the coordinates 0, 3, 6, 9 and 12, among which four are less than or equal to 9.

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

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

fn main() {
    let n: usize = read();
    assert!(1 <= n && n <= 100);
    let x: i32 = read();
    assert!(1 <= x && x <= 10000);
    let mut l_list: Vec<i32> = Vec::new();

    for _ in 0..n {
        l_list.push(read());
    }
    l_list.iter().map(|&l| {
        assert!(1 <= l && l <= 100)
    });
    let mut count: usize = 0;
    let mut d: i32 = 0;

    loop {
        if count == (n + 1){
            break;
        }

        if count > 0 {
            d += *l_list.get(count - 1).unwrap();
        }

        if d > x {
            break;
        }
        count += 1;
    }
    println!("{}", count);
}

// fn rounding() {
//     let x: i32 = read();
//     let a: i32 =  read();
    
//     let output: i32 = if x < a {
//          0
//     } else {
//          10
//     };

//     println!("{}", output);
// }

fn read<T: FromStr>() -> T {
    let stdin = stdin();
    let stdin = stdin.lock();
    let token: String = stdin
        .bytes()
        .map(|c| c.expect("failed to read char") as char)
        .skip_while(|c| c.is_whitespace())
        .take_while(|c| !c.is_whitespace())
        .collect();
    token.parse().ok().expect("failed to parse token")
}