摘要：
Description A single positive integer i is given. Write a program to find the digit located in the position i in the sequence of number groups S1S2... 阅读全文
摘要：
Description We have received an order from Pizoor Communications Inc. for a special communication system. The system consists of several devices. For 阅读全文
摘要：
Description A factory produces products packed in square packets of the same height h and of the sizes 1*1, 2*2, 3*3, 4*4, 5*5, 6*6. These products ar 阅读全文
摘要：
Description "Kronecker's Knumbers" is a little company that manufactures plastic digits for use in signs (theater marquees, gas station price displays 阅读全文
摘要：
Description Marsha and Bill own a collection of marbles. They want to split the collection among themselves so that both receive an equal share of the 阅读全文
摘要：
Description Sally Jones has a dozen Voyageur silver dollars. However, only eleven of the coins are true silver dollars; one coin is counterfeit even t 阅读全文
摘要：
Description The Joseph's problem is notoriously known. For those who are not familiar with the original problem: from among n people, numbered 1, 2, . 阅读全文