24 lines
732 B
Rust
24 lines
732 B
Rust
use std::cmp::Ordering;
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impl Solution {
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pub fn search(mut nums: Vec<i32>, target: i32) -> i32 {
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// nums.len() > 0 so this is safe to do
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if *nums.first().unwrap_or(&-target) == target {
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return 0;
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}
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let mut current = nums.as_slice();
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let mut idx = 0;
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while current.len() > 1 {
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let m = current.len() / 2;
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match target.cmp(¤t[m]) {
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Ordering::Equal => return (idx + m) as i32,
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Ordering::Greater => {
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current = current.split_at(m).1;
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idx += m;
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},
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Ordering::Less => current = current.split_at(m).0
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}
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}
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-1
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}
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} |