Getting error in the practice challenge

#1

i have compiled this code again and again but I am not getting the right answer. can you help me fix it?
#include
using namespace std;
int main()
{
int n;
cin>>n;
int a[64]={0};
int x;
for(int i=0;i<n;i++)
{
cin>>x;
int j=0;
while(x>0)
{
int last_bit=x&1;
a[j]+=last_bit;
j++;
x>>1;
}
}
int p=1;
int ans=0;
for(int i=0;i<64;i++)
{
a[i]%=3;
ans+=a[i]p;
p=p2;
}
cout<<ans;
return 0;
}

#2

hello @jindaldivish
please save ur code here-> https://ide.codingblocks.com/
and share the link with me.

#3
#4

image
here it should be
x=x>>1;

#5

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