isTest
public class TestUtil {
public static void createTestAccounts() {
// Create some test accounts
}
public static void createTestContacts() {
// ......
A permutation \(p\) of size \(n\) is an array such that every integer from \(1\) to \(n\) occurs exactly once in this array.
Let's call a permutation ......
Ancient Roman empire had a strong government system with various departments, including a secret service department. Important documents were sent bet ......