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`@@ -38,6 +38,7 @@ This is the solutions collection of my LeetCode submissions, most of them are pr`
`38`	`38`	`\|71\|[Simplify Path](https://leetcode.com/problems/simplify-path/) \| [JavaScript](./src/simplify-path/res.js)\|Medium\|`
`39`	`39`	`\|73\|[Set Matrix Zeroes](https://leetcode.com/problems/set-matrix-zeroes/) \| [JavaScript](./src/set-matrix-zeroes/res.js)\|Medium\|`
`40`	`40`	`\|75\|[Sort Colors](https://leetcode.com/problems/sort-colors/) \| [JavaScript](./src/sort-colors/res.js)\|Medium\|`
	`41`	`+\|80\|[Remove Duplicates from Sorted Array II](https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/) \| [JavaScript](./src/remove-duplicates-from-sorted-array-ii/res.js)\|Medium\|`
`41`	`42`	`\|91\|[Decode Ways](https://leetcode.com/problems/decode-ways/) \| [JavaScript](./src/decode-ways/res.js)\|Medium\|`
`42`	`43`	`\|93\|[Restore IP Addresses](https://leetcode.com/problems/restore-ip-addresses/) \| [JavaScript](./src/restore-ip-addresses/res.js)\|Medium\|`
`43`	`44`	`\|120\|[Triangle](https://leetcode.com/problems/triangle/) \| [JavaScript](./src/triangle/res.js)\|Medium\|`

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`@@ -0,0 +1,25 @@`
	`1`	`+/*`
	`2`	`+ * @Author: hijiangtao@gmail.com`
	`3`	`+ * @Date: 2019年10月08日 20:44:59`
	`4`	`+ * @Last Modified time: 2019年10月08日 20:45:19`
	`5`	`+ */`
	`6`	`+`
	`7`	`+/**`
	`8`	`+ * @param {number[]} nums`
	`9`	`+ * @return {number}`
	`10`	`+ */`
	`11`	`+const removeDuplicates = function(nums) {`
	`12`	`+ return solutionK(nums, 2);`
	`13`	`+};`
	`14`	`+`
	`15`	`+const solutionK = (nums, k) => {`
	`16`	`+ let index = 0;`
	`17`	`+`
	`18`	`+ for (let i=0; i<nums.length; i++) {`
	`19`	`+ if (index < k \|\| nums[i] !== nums[index-k]) {`
	`20`	`+ nums[index++] = nums[i];`
	`21`	`+ }`
	`22`	`+ }`
	`23`	`+`
	`24`	`+ return index;`
	`25`	`+}`

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