摘要：
Wangpeng has N clothes, M pants and K shoes so theoretically he can have N×M×K different combinations of dressing.One day he wears his pants Nike, sho... 阅读全文
摘要：
Rabbit Tom and rabbit Jerry are running in a field. The field is an N×N grid. Tom starts from the up-left cell and Jerry starts from the down-right ce... 阅读全文
摘要：
Imagine that you have to prepare a problem set for the forthcoming programming contest and you have already chosen the problems you will use in it. Be... 阅读全文
摘要：
Side onePoll flew above the City. Bright street lights flashed by below. He was winding his way around needle-sharp spires of communication towers and... 阅读全文
摘要：
DZY has a sequencea, consisting ofnintegers.We'll call a sequenceai, ai + 1, ..., aj(1 ≤ i ≤ j ≤ n)a subsegment of the sequencea. The value(j - i + 1)... 阅读全文