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Valid Mountain Array

Created

2022/01/25 01:16

문제 번호

941

카테고리

Array

Valid Mountain Array - LeetCode

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https://leetcode.com/problems/valid-mountain-array/

Code

제출 날짜	시간	메모리
2022/01/25	24 ms	6.7 MB

// 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
}
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