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34. Find First and Last Position of Element in Sorted Array
162. Find Peak Element
33. Search in Rotated Sorted Array
81. Search in Rotated Sorted Array II
540. Single Element in a Sorted Array
287. Find the Duplicate Number
1095. Find in Mountain Array
2972. Count the Number of Incremovable Subarrays II
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34. Find First and Last Position of Element in Sorted Array