Valid Mountain Array

// 941. Valid Mountain Array // // https://leetcode.com/problems/valid-mountain-array/ // validMountainArray function checks the array is formed like mountain or not. // Mountain consists of increasing range, and decreasing range. // There's no plain on the mountain. func validMountainArray(arr []int) bool { top := 0 for top = 0; top < len(arr)-1; top++ { if arr[top] >= arr[top+1] { break } } if top == 0 || top == len(arr)-1 { return false } for ; top < len(arr)-1; top++ { if arr[top] <= arr[top+1] { return false } } return true }