你告诉我 == 的优先级比 ^ 高？

#include<bits/stdc++.h>
using namespace std;
const int N=2e5+10;
int a[N],b[N];
signed main()
{
	int n;cin>>n;
	for(int i=1;i<=n;i++)cin>>a[i],b[i]=a[i];
	sort(b+1,b+n+1);int k=unique(b+1,b+n+1)-b-1;
	if(k>3)
	{
		cout<<"No";
		return 0;
	}
	int sum1=0,sum2=0,sum3=0;
	for(int i=1;i<=n;i++)
	{
		if(a[i]==b[1])sum1++;
		if(a[i]==b[3])sum3++;
		if(a[i]==b[2])sum2++;		
	}
	if(k==3&&sum1==sum2&&sum2==sum3&&((b[1]^b[2]^b[3])==0))
	{
		cout<<"Yes";
		return 0;
	}
	if(k==2&&sum1*2==sum2)
	{
		if(b[1]==0)
		{
			cout<<"Yes";
			return 0;
		}
	}
	if(k==1&&b[1]==0)
	{
		cout<<"Yes";
		return 0;
	}
	cout<<"No";
	return 0;
}