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2023-12-23 22:23:48 +08:00
commit 43ced8bd2a
58 changed files with 5702 additions and 0 deletions

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ACMOJ-1663.cpp Normal file
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#include<iostream>
#include<cstring>
#include<algorithm>
using namespace std;
int main()
{
#ifdef local
freopen("pro.in","r",stdin);
#endif
int n,a,res=0; scanf("%d",&n);
for(int i=0;i<n;i++) { scanf("%d",&a); res^=a; }
printf("%d\n",res);
return 0;
}