81. Search in Rotated Sorted Array II
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//ac 8ms//本题关键在于如何辨别nums[i]==nums[m]的情景//例如[1 1 1 1 1 3 1 1 1 1 1 1 1]这种情景二分法根本无法判断target在哪个区间,所以这种情况只能逐步查找。class Solution {public: bool search(vector<int>& nums, int target) { int i=0,j=nums.size()-1; while(i<=j) { int m=i+(j-i)/2; if(nums[m]==target) return true; if(nums[m]>nums[i]) { if(target>=nums[i]&&target<nums[m]) j=m-1; else i=m+1; } else if(nums[m]<nums[i]) { if(target>nums[m]&&target<=nums[j]) i=m+1; else j=m-1; } else i++; } return false; }};
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- 81.Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
- 81. Search in Rotated Sorted Array II
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- 81. Search in Rotated Sorted Array II
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