B. A and B and Compilation Errors1100 / 思维

Posted 2021-11-25 幽殇默

https://codeforces.com/problemset/problem/519/B
思维: 用异或的思想，其实也可以用和做差的思想。

#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
int a[N],b[N],c[N],n;
int main(void)
{
	int n; cin>>n;
	int temp1=0,temp2=0;
	for(int i=1;i<=n;i++) cin>>a[i],temp1^=a[i];
	for(int i=1;i<=n-1;i++) cin>>b[i],temp1^=b[i],temp2^=b[i];
	for(int i=1;i<=n-2;i++) cin>>c[i],temp2^=c[i];
	cout<<temp1<<endl;
	cout<<temp2<<endl;
	return 0;
}