Zigzag

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main()
{
	cin.sync_with_stdio(false);	
	
    int n;
    cin>>n;
    if(n==1){
        cout<<1<<endl;
        return 0;
    }
    
    int m = 0, k, s = 2, t = 0;
    cin>>m;
    cin>>k;
    bool r=m<k;
    m=k;
    for (int i = 2; i < n; i++)
    {
        cin>>k;
        if ((m<k) == r) {t=max(s,t);s = 2;}
        else {r = !r; s++;}
        m=k;
    }
    t = max(s,t);
    cout<<t<<endl;

	return 0;
}

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER

Test 11

Verdict: WRONG ANSWER

Test 12

Verdict: WRONG ANSWER

Test 13

Verdict: WRONG ANSWER

Test 14

Verdict: WRONG ANSWER

Test 15

Verdict: WRONG ANSWER

Test 16

Verdict: WRONG ANSWER

Test 17

Verdict: WRONG ANSWER

Test 18

Verdict: WRONG ANSWER

Test 19

Verdict: WRONG ANSWER

Test 20

Verdict: WRONG ANSWER

Test 21

Verdict: WRONG ANSWER

Test 22

Verdict: WRONG ANSWER

Test 23

Verdict: ACCEPTED