PolarisSherlock

摘要： ParencodingsTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 18785Accepted: 11320DescriptionLet S = s1 s2...s2n be a well-formed string of parentheses. S can be encoded in two different ways: q By an integer sequence P = p1 p2...pn where pi is the number of left parentheses before the ith ri 阅读全文

摘要： To the MaxTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 39081Accepted: 20639DescriptionGiven a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1*1 or greater located within the whole array. The sum of a rectangle is the sum of a 阅读全文