摘要：
There are n employees in Alternative Cake Manufacturing (ACM). They are now voting on some very important question and the leading world media are try 阅读全文
摘要：
Long time ago Alex created an interesting problem about parallelogram. The input data for this problem contained four integer points on the Cartesian 阅读全文
摘要：
Bachgold problem is very easy to formulate. Given a positive integer n represent it as a sum of maximum possible number of prime numbers. One can prov 阅读全文