唉。。想太复杂了,,其实就是看看那边sort掉的..然后判断target在不在那边,不在就扔到另一边继续找
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24 | public class Solution {
public int search(int[] nums, int target) {
int left = 0;
int right = nums.length-1;
while (left <= right){
int mid = (left+right)/2;
if (nums[mid] == target) return mid;
if (nums[mid] < nums[right]){
if(target > nums[mid] && target <= nums[right]){
left = mid + 1;
}else{
right = mid-1;
}
}else{
if (target < nums[mid] && target >= nums[left]){
right = mid-1;
}else{
left = mid+1;
}
}
}
return -1;
}
}
|
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