Pranesh A S

@mbasmanova Yes, I followed those steps .. but the error persists. I'm using Ubuntu 18.04

Sure @mbasmanova

``` ` -- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) -- The System identification is Linux-4.15.0-112-generic Linux 4.15.0-112-generic Platform/Linux -- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) -- The System identification is...

g++ (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 cmake version 3.10.2

Same error in build

> I know this passes the test. but why this works? seems the complexity is n * n? Yes it runs at n^2. I uploaded it as it will be...

I updated the code. You may check. Thanks

Ok.. I accept. Now you can check. I've updated the solution that runs in linear time and with constant space.

@abigger87 RFC :)

for achieving that you may need to store the details of the transaction in a database and add endpoints to fetch and process the data.