Create 1752-check-if-array-is-sorted-and-rotated.js

Author: everthis

1752-check-if-array-is-sorted-and-rotated.js

@@ -0,0 +1,20 @@
+/**
+ * @param {number[]} nums
+ * @return {boolean}
+ */
+const check = function(nums) {
+  let prev = -1, mark = 0
+  for(let e of nums) {
+    
+    if(e >= prev) prev = e
+    else {
+      mark++
+      prev = e
+    }
+    if(mark > 1) return false
+  }
+  if(mark === 1 && nums[0] < nums[nums.length - 1]) {
+      return false
+  }
+  return true
+};