题目链接：http://exam.upc.edu.cn/problem.php?id=5094题目：题目描述As part of a CS course, Alice just finished programming her robot to explore a graph having n nodes, labeled 1, 2, . . . , n, and m directed edg...
题目链接：http://exam.upc.edu.cn/problem.php?id=5095题目：题目描述You’re playing hopscotch! You start at the origin and your goal is to hop to the lattice point (N, N). A hop consists of going from lattice poi...
题目链接：http://exam.upc.edu.cn/problem.php?id=4991题目：题目描述As a New Yorker you are always very busy. Apart from your long work day you tend to have a very long list oferrands that need to be done on any...
题目链接：http://exam.upc.edu.cn/problem.php?id=5083题目：题目描述You are working on the user interface for a simple text-based file explorer. One of your tasks is to build a navigation pane displaying the dir...
题目链接：http://exam.upc.edu.cn/problem.php?id=4979题目：题目描述Your friend from Manhattan is visiting you in Amsterdam. Because she can only stay for a short while, she wants to see as many tourist attracti...