Are there any good resources for improving one's approach to Project Euler (or Open CS) problems? I tend to brute force everything and would like to improve an

Are there any good resources for improving one's approach to Project Euler (or Open CS) problems? I tend to brute force everything and would like to improve and diversify my approach. However, when I search for solutions, I tend only to find people's best-effort code, and would like to see more of a break down of multiple approaches. This blog seems like a good start, but more diversity and comparison would be ideal: http://project-euler.blogspot.com/ http://project-euler.blogspot.com/