题目链接 http://acm.hdu.edu.cn/showproblem.php?pid=5558 Problem Description Alice wants to send a classified message to Bob. She tries to encrypt the message with her original encryption method. The message is a string S, which consists of Nlowercase let…
House Building Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 145 Accepted Submission(s): 123 Problem Description Have you ever played the video game Minecraft? This game has been one of t…
Chip Factory Time Limit: 18000/9000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 368 Accepted Submission(s): 202 Problem Description John is a manager of a CPU chip factory, the factory produces lots of chips…
Partial Tree Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 228 Accepted Submission(s): 138 Problem Description In mathematics, and more specifically in graph theory, a tree is an undirect…
Dancing Stars on Me Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 186 Accepted Submission(s): 124 Problem Description The sky was brushed clean by the wind and the stars were cold in a bl…
Almost Sorted Array Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 447 Accepted Submission(s): 201 Problem Description We are all familiar with sorting algorithms: quick sort, merge sort,…
Rebuild Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 446 Accepted Submission(s): 113 Problem Description Archaeologists find ruins of Ancient ACM Civilization, and they want to rebuild i…
Count a * b Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 211 Accepted Submission(s): 116 Problem Description Marry likes to count the number of ways to choose two non-negative integers a…
