279. First and last occurrence
Given an array of integers nums sorted in non-decreasing order, find the starting and ending position of a given target value. If the target is not found in the array, return [-1, -1].
Example 1:
Input: nums = [5, 7, 7, 8, 8, 10], target = 8
Output: [3, 4]
Explanation:The target is 8, and it appears in the array at indices 3 and 4, so the output is [3,4]
Example 2:
Input: nums = [5, 7, 7, 8, 8, 10], target = 6
Output: [-1, -1]
Expalantion: The target is 6, which is not present in the array. Therefore, the output is [-1, -1].
Now Your Turn!
Pick the correct output for the given inputInput: nums = [5, 7, 7, 8, 8, 10], target = 5
Still unsure what the problem is asking ?
Let’s go through a few more examples, step by step, to make it clearer.
Constraints:
- 0 <= nums.length <= 105
- -109 <= nums[i] <= 109
- nums is a non-decreasing array.
- -109 <= target <= 109