总是编译失败

#include<bits/stdc++.h>
using namespace std;
#define ll long long
ll a,b,c,d,n,m;
int q[100000],p,o[100000];
char x;
string s;
void qpsjgnjwqfnddd(){
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a[i];
	}
	for(int i=0;i<n;i++){
		if(a[i]%2==0){
			p[i]=a[i];
		}
		if(a[i]%1==0){
			o[i]=a[i];
		}
	}
	cout<<p[i]<<" "<<endl;
	cout<<o[i];
}
int main(){
	qpsjgnjwqfnddd();
}