Clock Hands & Circumference

Problem 579. Clock Hands
Took me 33 minutes, 43 seconds to code and successfully submit. Simple problem, shouldn't have taken me so long. I derived the wrong formula and even did a WA submission! I should be ashamed of myself... This, I think, was the easiest problem in the entire ACM collection...

Problem 438. The Circumference
Anshul found out the appropriate formula from TMH, I tried deriving it. Anshul coded the problem, I debugged it. Anshul wrote the algo, I implemented the input/output format. Teamwork! This problem done quite easily. Just submitted the code. My submission took ACM judge 0.000 seconds, while Anshul's took 0.004 seconds. I wonder why, coz we submitted the same file twice. Anyway, I am rank 1088 for that problem.