摘要： Description Farmer John's N cows (1 <= N <= 100,000) are lined up in a row.Each cow is labeled with a number in the range 1...K (1 <= K <=10,000) iden 阅读全文

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