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#136: add C++ implementation #74

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Aug 3, 2019
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#136: add C++ implementation #74

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22 changes: 22 additions & 0 deletions problems/136.single-number.md
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Expand Up @@ -36,6 +36,9 @@ Your algorithm should have a linear runtime complexity. Could you implement it w

## 代码

* 语言支持：JS，C++

JavaScrip Code：
```js
/*
* @lc app=leetcode id=136 lang=javascript
Expand Down Expand Up @@ -86,6 +89,25 @@ var singleNumber = function(nums) {
return ret;
};
```
C++：
```C++
class Solution {
public:
int singleNumber(vector<int>& nums) {
auto ret = 0;
for (auto i : nums) ret ^= i;
return ret;
}
};

// C++ one-liner
class Solution {
public:
int singleNumber(vector<int>& nums) {
return accumulate(nums.cbegin(), nums.cend(), 0, bit_xor<int>());
}
};
```

## 延伸

Expand Down