摘要： Description There are N beads which of the same shape and size, but with different weights. N is an odd number and the beads are labeled as 1, 2, ..., 阅读全文

摘要： Description A very big corporation is developing its corporative network. In the beginning each of the N enterprises of the corporation, numerated fro 阅读全文

摘要： Description Mo and Larry have devised a way of encrypting messages. They first decide secretly on the number of columns and write the message (letters 阅读全文

摘要： Description Farmer John's farm consists of a long row of N (1 <= N <= 100,000)fields. Each field contains a certain number of cows, 1 <= ncows <= 2000 阅读全文

摘要： Description A palindrome is a symmetrical string, that is, a string read identically from left to right as well as from right to left. You are to writ 阅读全文

摘要： Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up 阅读全文

摘要： Description The advice to "buy low" is half the formula to success in the bovine stock market.To be considered a great investor you must also follow t 阅读全文

摘要： Description A military contractor for the Department of Defense has just completed a series of preliminary tests for a new defensive missile called th 阅读全文

摘要： Description The twenty-first century is a biology-technology developing century. One of the most attractive and challenging tasks is on the gene proje 阅读全文

摘要： Description You have typed the report of your term project in your personal computer. There are several one line arithmetic expressions in your report 阅读全文