blob: 4cd717be82d4487820d58bec20498317128b4578 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
struct Solution;
impl Solution {
unsafe fn guessNumber(n: i32) -> i32 {
let (mut s, mut n) = (1, n as i64);
while s <= n {
let x = (n + s) / 2;
let g = guess(x as i32);
match g {
0 => return x as i32,
1 => s = x + 1,
-1 => n = x - 1,
_ => unreachable!()
}
}
unreachable!()
}
}
fn main() {
print!("{}", Solution::guessNumber(10));
}
|