Unique numbers 2

#1

here is the code its giving correct output in my compiler.
but its showing wrong answer in hackerblocks.
#include
using namespace std;
int main() {
int n,i;
cin>>n;
int res=0,arr[n];
for( i=0;i<n;i++)
{cin>>arr[i];
res=res^arr[i];}
i=0;
n=res;
while(n)
{
if(n & 1)
break;
n=n>>1;
i++;
}
int mask=1<<i,num1=0;
for(i=0;i<n;i++)
if(arr[i] & mask)
num1=num1 ^ arr[i];
res=res ^ num1;
cout<<res<<" "<<num1;

return 0;

}

#2

Please for the next time, try to share your code by using the online IDE.

Use both {} open & closed brackets with care and maintain to do indentation style in programming. It is working particularly for the given problem that means it is not a generalised solution.

Your algorithm is correct almost but you need to understand the loops & their workflow.
I suggest you to dry run the code yourself and you will be able to see mistakes and you will get a good knowledge of the workflow of the program.

If you have any other doubts, please feel free to ask.

#3

how to share code using online ide…??

#4

image
image1332×681 35.8 KB

#5

Thanks rohit kumar for your help.
If you still have queries, Just follow the steps given below:-

  1. Copy your code from your local computer and open https://ide.codingblocks.com/ on your web browser.
  2. Click on save button & you will see an ID after the above url.
  3. Copy that link & share it with us here.

It is as simple as that.

#6

This is the link for the question:----- Question. This is an easy question and depends upon the understanding.