Problem Description We all use cell phone today. And we must be familiar with the intelligent English input method on the cell phone. To be specific, the number buttons may correspond to some English letters respectively, as shown below: 2 : a, b, c …
Tree Recovery Little Valentine liked playing with binary trees very much. Her favoritegame was constructingrandomly looking binary trees with capital letters in the nodes. This is an example of one of her creations: D / \ / \ B E / \ \ / \ \ A C G…
Parentheses Balance You are given a string consisting of parentheses () and []. Astring of this type is said to be correct: (a) if it is the empty string (b) if A and B are correct, AB is correct, (c) if A is correct, (A ) and [A ] is correct. Writ…
Fliping game Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 853 Accepted Submission(s): 612 Problem Description Alice and Bob are playing a kind of special game on an N*M board (N rows, M c…
Intelligent IME Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4776 Accepted Submission(s): 2227 Problem Description We all use cell phone today. And we must be familiar with the intelligen…
Intelligent IME Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=4287 Description We all use cell phone today. And we must be familiar with the intelligent English input method on the cell phone. To be specific,…
:W Problem A: Football (aka Soccer) The Problem Football the most popular sport in the world (americans insist to call it "Soccer",but we will call it "Football"). As everyone knows, Brasil is the country that have mostWorld Cup title…
