Submission #3451312

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Source Code Expand

N = int(input())
A = list(map(int, input().split()))

if N == 1:
	print(1)

elif N == 2:
	print(1)

else:
	L = []
	for i in range(1, N):
		x = A[i] - A[i - 1]
		if x > 0:
			L.append("+")
		elif x == 0:
			L.append(".")
		else:
			L.append("-")

	c = 1
	judge = L[0]
	for i in range(1,N - 1):
		if L[i] == ".":
			pass
		elif L[i] == "+":
			if judge == "+" or judge == ".":
				judge = "+"
			else:
				c += 1
				judge = "."
		else:
			if judge == "-" or judge == ".":
				judge = "-"
			else:
				c += 1
				judge = "."

	print(c)

Submission Info

Judge Result