摘要：
Time limit: 1.0 second Memory limit: 64 MBVasya is the beginning mathematician. He decided to make an important contribution to the scienc... 阅读全文
摘要：
Time limit: 0.5 second Memory limit: 64 MBGiven a 2-dimensional array of positive and negative integers, find the sub-rectangle with the l... 阅读全文