20 lines
619 B
Rust
20 lines
619 B
Rust
impl Solution {
|
|
pub fn two_sum(numbers: Vec<i32>, target: i32) -> Vec<i32> {
|
|
let (mut front, mut back) = (
|
|
numbers.iter(),
|
|
numbers.iter().rev()
|
|
);
|
|
let (mut f_idx, mut f) = (1, *front.next().unwrap());
|
|
let (mut b_idx, mut b) = (numbers.len() as i32, *back.next().unwrap());
|
|
while f + b != target {
|
|
if f + b > target {
|
|
b = *back.next().unwrap();
|
|
b_idx -= 1;
|
|
} else {
|
|
f = *front.next().unwrap();
|
|
f_idx += 1;
|
|
}
|
|
}
|
|
vec![f_idx, b_idx]
|
|
}
|
|
} |