MindStick Software Software Developer interview questions

First was coding round mainly focus on coding, Then at office technical interview and last is HR interview I was applied through college. i was shortlisted at first round of coding my code is partially run but logic is correct when i was go at there office then they give me those program and say correct them and show me the output as i expect so please work on programming and if you select at first round of programming the make sure that your program is correct if not the must do first before going to interview