摘要： A. IQ Testtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputIn the city of Ultima Thule job applicants are often offered an IQ test.The test is as follows: the person gets a piece of squared paper with a4 × 4square painted on it. Some of the s 阅读全文

摘要： C. Building Permutationtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputPermutation p is an ordered set of integers p1, p2, ..., pn, consisting of n distinct positive integers, each of them doesn't exceed n. We'll denote the i-th element o 阅读全文