Package g0901_1000.s0941_valid_mountain_array

Class Solution

java.lang.Object

g0901_1000.s0941_valid_mountain_array.Solution

public class Solution
extends Object

941 - Valid Mountain Array\. Easy Given an array of integers `arr`, return _`true` if and only if it is a valid mountain array_. Recall that arr is a mountain array if and only if: * `arr.length >= 3` * There exists some `i` with `0 < i < arr.length - 1` such that: * `arr[0] < arr[1] < ... < arr[i - 1] < arr[i]` * `arr[i] > arr[i + 1] > ... > arr[arr.length - 1]`  **Example 1:** **Input:** arr = [2,1] **Output:** false **Example 2:** **Input:** arr = [3,5,5] **Output:** false **Example 3:** **Input:** arr = [0,3,2,1] **Output:** true **Constraints:** * 1 <= arr.length <= 104 * 0 <= arr[i] <= 104

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
boolean	validMountainArray(int[] arr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

validMountainArray

public boolean validMountainArray(int[] arr)