search in rotated sorted array solution

Author: hyer0705

search-in-rotated-sorted-array/hyer0705.ts

@@ -0,0 +1,26 @@
+function search(nums: number[], target: number): number {
+  let left = 0;
+  let right = nums.length - 1;
+
+  while (left <= right) {
+    const mid = Math.floor((left + right) / 2);
+
+    if (nums[mid] === target) return mid;
+
+    if (nums[mid] >= nums[left]) {
+      if (target < nums[mid] && target >= nums[left]) {
+        right = mid - 1;
+      } else {
+        left = mid + 1;
+      }
+    } else {
+      if (target > nums[mid] && target <= nums[right]) {
+        left = mid + 1;
+      } else {
+        right = mid - 1;
+      }
+    }
+  }
+
+  return -1;
+}