Содержание
Задача 1.1....................................................................3
Задача 1.2....................................................................4
Задача 1.3.-1.6................................................................4
Задача 2.1....................................................................5
Задача 2.2...................................................................7
Задача 2.3...................................................................8
Задача 2.4....................................................................8
Задача 3....................................................................10
Задача 5....................................................................11
Задача 6.1...................................................................12
Задача 6.2...................................................................14
Задача 6.3...................................................................14