A page of a college student

Value swap of 2 variables using 2 variables
Swapping values of 2 variables commonly uses a 3rd temporary value.
But this doesn't have to be the case. Check out 2 variable swap.

How I solved Corrupt JPEG error

Truths ans Falsities of how to get good grades
Here it is.. derived from an email I got.

I was on ACM Backtracking Demons team in 2004.
I was on ACM Dearborn Masters team in 2005. Local Scores
On Putnam Exam I got 2 and 1 points respectively.

ACM Contest: strategy. (brief)