Hi,
I have experience with building C++ programs on linux and debuging them using gdb. Based on complexity of the program and type of bug, it can take anywhere from 2 hour to 5 hour to fix and deliver it. My work timings are from 10PM IST to 3 AM IST (Weekdays &Weekends) and 3PM IST to 8PM(Weekends).
Based on what time you award this to me, it will be done in within 24 hours.
Thanks & Regards
Gunjan Gupta