Submission #1221353

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Source Code Expand

#include<iostream>
#include<vector>
using namespace std;

int main()
{
	int N;
	cin >> N;
	vector<int> A(N);
	for (int i = 0; i < N; i++) {
		cin >> A[i];
	}
	int ans = 1;
	for (int i = 2; i < N; i++) {
		if (A[i - 1] - A[i - 2] > 0 && A[i] - A[i - 1] < 0) {
			ans++;
			i++;
			continue;
		}
		if (A[i - 1] - A[i - 2] < 0 && A[i] - A[i - 1] > 0) {
			ans++;
			i++;
			continue;
		}
	}
	cout << ans << endl;
	return 0;
}

Submission Info

Judge Result