Veritas des Liberty

摘要： A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child. Input Specification: Each inp 阅读全文

摘要： As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some ro 阅读全文

摘要： This time, you are supposed to find A+B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occu 阅读全文

摘要： 1001 A+B Format (20分) Calculate a+b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unl 阅读全文

摘要： 1071. Greatest Common Divisor of Strings For strings S and T, we say "T divides S" if and only if S = T + ... + T (T concatenated with itself 1 or mor 阅读全文

摘要： Given an integer array, your task is to find all the different possible increasing subsequences of the given array, and the length of an increasing su 阅读全文

摘要： Think about Zuma Game. You have a row of balls on the table, colored red(R), yellow(Y), blue(B), green(G), and white(W). You also have several balls i 阅读全文

摘要： Remember the story of Little Match Girl? By now, you know exactly what matchsticks the little match girl has, please find out a way you can make one s 阅读全文

摘要： Given a reference of a node in a connected undirected graph, return a deep copy (clone) of the graph. Each node in the graph contains a val (int) and 阅读全文

摘要： Given a number N, return a string consisting of "0"s and "1"s that represents its value in base -2 (negative two). The returned string must have no le 阅读全文