Perf test 5 is failing

I am failing only this test case.

I am using the two pointer approach and sorting the both the vectors so that the time complexity can be O (mlogm + nlogn) but still it is failing.

My program gives the correct output for the test case given here : Perf test 5 failing

Have you managed to resolve this?

No. I am still stuck at it.

registrationNumber += (regNumber[2] - '0') * 9 * 6759324;

This should be multiplied with 10 instead of 9 because there are total 10 possible numbers from 0-9.

Closing this topic as your issue is resolved by the mentor. If it is still not resolved, Kindly un-mark the accepted solution or create a new topic and post this question as a reference link in the description of the new topic.