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Junqiao

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Update 0034.在排序数组中查找元素的第一个和最后一个位置.md

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- 0034.在排序数组中查找元素的第一个和最后一个位置.md

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`‎problems/0034.在排序数组中查找元素的第一个和最后一个位置.md‎`

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Original file line number	Diff line number	Diff line change
`@@ -329,6 +329,67 @@ class Solution {`
`329`	`329`	`}`
`330`	`330`	```
`331`	`331`
	`332`	`+### C#`
	`333`	`+`
	`334`	+```c#
	`335`	`+public int[] SearchRange(int[] nums, int target) {`
	`336`	`+`
	`337`	`+ var leftBorder = GetLeftBorder(nums, target);`
	`338`	`+ var rightBorder = GetRightBorder(nums, target);`
	`339`	`+`
	`340`	`+ if (leftBorder == -2 \|\| rightBorder == -2) {`
	`341`	`+ return new int[] {-1, -1};`
	`342`	`+ }`
	`343`	`+`
	`344`	`+ if (rightBorder - leftBorder >=2) {`
	`345`	`+ return new int[] {leftBorder + 1, rightBorder - 1};`
	`346`	`+ }`
	`347`	`+`
	`348`	`+ return new int[] {-1, -1};`
	`349`	`+`
	`350`	`+}`
	`351`	`+`
	`352`	`+public int GetLeftBorder(int[] nums, int target){`
	`353`	`+ var left = 0;`
	`354`	`+ var right = nums.Length - 1;`
	`355`	`+ var leftBorder = -2;`
	`356`	`+`
	`357`	`+ while (left <= right) {`
	`358`	`+ var mid = (left + right) / 2;`
	`359`	`+`
	`360`	`+ if (target <= nums[mid]) {`
	`361`	`+ right = mid - 1;`
	`362`	`+ leftBorder = right;`
	`363`	`+ }`
	`364`	`+ else {`
	`365`	`+ left = mid + 1;`
	`366`	`+ }`
	`367`	`+ }`
	`368`	`+`
	`369`	`+ return leftBorder;`
	`370`	`+}`
	`371`	`+`
	`372`	`+public int GetRightBorder(int[] nums, int target){`
	`373`	`+ var left = 0;`
	`374`	`+ var right = nums.Length - 1;`
	`375`	`+ var rightBorder = -2;`
	`376`	`+`
	`377`	`+ while (left <= right) {`
	`378`	`+ var mid = (left + right) / 2;`
	`379`	`+`
	`380`	`+ if (target >= nums[mid]) {`
	`381`	`+ left = mid + 1;`
	`382`	`+ rightBorder = left;`
	`383`	`+ }`
	`384`	`+ else {`
	`385`	`+ right = mid - 1;`
	`386`	`+ }`
	`387`	`+ }`
	`388`	`+`
	`389`	`+ return rightBorder;`
	`390`	`+}`
	`391`	+```
	`392`	`+`
`332`	`393`
`333`	`394`
`334`	`395`	`### Python`

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`‎problems/0034.在排序数组中查找元素的第一个和最后一个位置.md‎`

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