摘要： DescriptionThe world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. John is one of them. He is very... 阅读全文

摘要： DescriptionGiven a sequence a[1],a[2],a[3]......a[n], your job is to calculate the max sum of a sub-sequence. For example, given (6,-1,5,4,-7), the ma... 阅读全文

摘要： Descriptionbobo has a sequence a1,a2,…,an. He is allowed to swap twoadjacentnumbers for no more than k times.Find the minimum number of inversions aft... 阅读全文

摘要： DescriptionBefore the invention of book-printing, it was very hard to make a copy of a book. All the contents had to be re-written by hand by so calle... 阅读全文

摘要： DescriptionOnce Bob took a paper stripe ofnsquares (the height of the stripe is 1 square). In each square he wrote an integer number, possibly negativ... 阅读全文

摘要： DescriptionVanya walks late at night along a straight street of lengthl, lit bynlanterns. Consider the coordinate system with the beginning of the str... 阅读全文

摘要： Given several segments of line (int the X axis) with coordinates [Li , Ri ]. You are to choose the minimal amount of them, such they would completely ... 阅读全文

摘要： My birthday is coming up and traditionally I’m serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. ... 阅读全文

摘要： DescriptionIn this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swapping ... 阅读全文

摘要： DescriptionToday on a lecture about strings Gerald learned a new definition of string equivalency. Two stringsaandbof equal length are calledequivalen... 阅读全文