添加 0202.快乐数 Rust版本

添加 0202.快乐数 Rust版本
This commit is contained in:
cezarbbb
2022-07-12 14:08:50 +08:00
parent a29b52cc53
commit a8e19d60bb

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@ -315,6 +315,36 @@ class Solution {
} }
``` ```
Rust:
```Rust
use std::collections::HashSet;
impl Solution {
pub fn get_sum(mut n: i32) -> i32 {
let mut sum = 0;
while n > 0 {
sum += (n % 10) * (n % 10);
n /= 10;
}
sum
}
pub fn is_happy(n: i32) -> bool {
let mut n = n;
let mut set = HashSet::new();
loop {
let sum = Self::get_sum(n);
if sum == 1 {
return true;
}
if set.contains(&sum) {
return false;
} else { set.insert(sum); }
n = sum;
}
}
}
```
C: C:
```C ```C
typedef struct HashNodeTag { typedef struct HashNodeTag {