Unique number 1

#1

on which test case should i check my code at
here’s my code
#include
using namespace std;

int main(){

int a[1000];
unsigned int n,ans =0;
cin>>n;
for(int i=0;i<n;i++){

cin>>a[i];
ans ^= a[i];

}

cout<<ans;

return 0;
}

#2

hello @Manan_Bhateja
ur logic is correct,try to submit it

#3

i 'm falling in testcase 1 …and compile message is run error

#4

check value of n (from constraints section), and declare ur array size bigger than that