32 lines
483 B
Rust
32 lines
483 B
Rust
/**
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* [137] Single Number II
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*/
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pub struct Solution {}
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// submission codes start here
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impl Solution {
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pub fn single_number(nums: Vec<i32>) -> i32 {
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let (mut a, mut b) = (0, 0);
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for i in nums {
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b = !a & (b ^ i);
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a = !b & (a ^ i);
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}
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b
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}
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}
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// submission codes end
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_137() {
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assert_eq!(1, Solution::single_number(vec![1, 2, 2, 2]));
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}
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}
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