Follow up for "Search in Rotated Sorted Array":
What if duplicates are allowed?
Would this affect the run-time complexity? How and why?
Write a function to determine if a given target is in the array.
class Solution { public: bool search(int A[], int n, int target) { int left = 0,right = n - 1; while(left <= right) { int mid = left + (right - left) / 2; if(A[left] < target && target < A[mid]) right = mid - 1; if(A[mid] < target && target < A[right])left = mid + 1; else { if(A[left] != target) left++; else return true; if(A[right]!= target) right--; else return true; } } return false; } };