悬赏关注，大神帮忙看看

#include<bits/stdc++.h>
using namespace std;
int n,h;
long long a[101],k[101];
int main(){
	cin>>n;
	cin>>a[1]; 
	h++;
	k[1]=a[1];
	for(int i=2;i<=n;i++){
		cin>>a[i];
		if(i%2==1){
			if(k[i]>k[i-1]){
				h++;
				k[i]=a[i];
				//cout<<"y";
			}
			else{
				k[i]=a[i];
			}
		}
		if(i%2==0){
			if(k[i]<k[i-1]){
				h++;
				k[i]=a[i];
				//cout<<"y";
			}
			else{
				k[i]=a[i];
			}
		}
	}
	cout<<h<<endl;
	return 0;
}