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search_in_rotated_array.java
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36 lines (36 loc) · 1.06 KB
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class SearchRotatedArray {
public int search(int[] nums, int target) {
int f=0;
int l=nums.length-1;
int n = nums.length - 1;
if (target > nums[n]) {
while (f <= l) {
int mid = f + (l - f) / 2;
if (nums[mid] < nums[n]) {
l = mid - 1;
} else {
if (nums[mid] > target) {
l = mid - 1;
} else if (nums[mid] < target) {
f = mid + 1;
} else return mid;
}
}
}
else {
while (f <= l) {
int mid = f + (l - f) / 2;
if (nums[mid] > nums[n]) {
f = mid + 1;
} else {
if (nums[mid] > target) {
l = mid - 1;
} else if (nums[mid] < target) {
f = mid + 1;
} else return mid;
}
}
}
return -1;
}
}