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Merge pull request doocs#262 from ScarboroughCoral/master

feat:add typescript, rust, cpp solutions for 238

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	`1`	`+class Solution`
	`2`	`+{`
	`3`	`+public:`
	`4`	`+ vector<int> productExceptSelf(vector<int> &nums)`
	`5`	`+ {`
	`6`	`+ vector<int> dpLeft(nums.size(), 1);`
	`7`	`+ vector<int> dpRight(nums.size(), 1);`
	`8`	`+ for (int i = 1; i < nums.size(); i++)`
	`9`	`+ {`
	`10`	`+ dpLeft[i] = dpLeft[i - 1] * nums[i - 1];`
	`11`	`+ }`
	`12`	`+ for (int i = nums.size() - 2; i >= 0; i--)`
	`13`	`+ {`
	`14`	`+ dpRight[i] = dpRight[i + 1] * nums[i + 1];`
	`15`	`+ }`
	`16`	`+ vector<int> result;`
	`17`	`+ for (int i = 0; i < nums.size(); i++)`
	`18`	`+ {`
	`19`	`+ result.push_back(dpLeft[i] * dpRight[i]);`
	`20`	`+ }`
	`21`	`+ return result;`
	`22`	`+ }`
	`23`	`+};`

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	`1`	`+impl Solution {`
	`2`	`+ pub fn product_except_self(nums: Vec<i32>) -> Vec<i32> {`
	`3`	`+ let mut dp_left=vec![1_i32;nums.len()];`
	`4`	`+ let mut dp_right=vec![1_i32;nums.len()];`
	`5`	`+ for i in 1..nums.len(){`
	`6`	`+ dp_left[i]=dp_left[i-1]*nums[i-1];`
	`7`	`+ }`
	`8`	`+ for i in (0..(nums.len()-1)).rev(){`
	`9`	`+ dp_right[i]=dp_right[i+1]*nums[i+1];`
	`10`	`+ }`
	`11`	`+ dp_left.into_iter().enumerate().map(\|(i,x)\| x*dp_right[i]).collect()`
	`12`	`+ }`
	`13`	`+}`

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	`1`	`+function productExceptSelf(nums: number[]): number[] {`
	`2`	`+ let dpLeft = Array(nums.length).fill(1);`
	`3`	`+ let dpRight = Array(nums.length).fill(1);`
	`4`	`+ for (let i = 1; i < nums.length; i++) {`
	`5`	`+ dpLeft[i] = dpLeft[i - 1] * nums[i - 1];`
	`6`	`+ }`
	`7`	`+ for (let i = nums.length - 2; i >= 0; i--) {`
	`8`	`+ dpRight[i] = dpRight[i + 1] * nums[i + 1];`
	`9`	`+ }`
	`10`	`+ return dpLeft.map((x, i) => x * dpRight[i]);`
	`11`	`+}`

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