К сожалению набор тестов для задачи был не самым стойким поэтому часть решений могут использовать уязвимости.
Задача 1: ^abcdefghijklmnopqrstuv18340$
Задача 2: ^\{?[a-f0-F]{4}([a-f0-F]{4}\-){4}[a-f0-F]{12}\}?$
Задача 3: ^[0-9a-fA-F]{2}(:[0-9a-fA-F]{2}){5}$
Задача 4: ^((http:|https:)//)?[A-Za-z0-9][-A-Za-z0-9]*[A-Za-z0-9](\.[A-Za-z0-9][-A-Za-z0-9]*[A-Za-z0-9])*(:[0-9]+)?(/([A-Za-z0-9._]|%20)+)*(\?([A-Za-z0-9]|%20)+=([A-Za-z0-9]|%20)+(&([A-Za-z0-9]|%20)+=([A-Za-z0-9]|%20)+)*)?(#[A-Za-z0-9]+)?$
Задача 5: ^#[0-9A-Fa-f]{6}$
Задача 6: ^([012][1-9]|10|20|30|31)/(01|03|05|07|08|10|12)/((1[6-9]|[2-9][0-9])[0-9]{2})|([012][1-9]|10|20|30)/(04|06|09|11)/((1[6-9]|[2-9][0-9])[0-9]{2})|29/02/((1[6-9]|[2-9][0-9])(04|08|[13579][26]|[2468][480])|(16|[2468][048]|[3579][26])00)|(0[1-9]|1[0-9]|2[0-8])/02/((1[6-9]|[2-9][0-9])[0-9]{2})$
Задача 7: ^[a-zA-Z_0-9]+([\.-]?[a-zA-Z_0-9]+)*@[a-zA-Z_0-9]+([\.-]?[a-zA-Z_0-9]+)*\.([a-zA-Z_0-9]{2}|(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum))$
Задача 8: ^([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])(\.([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])){3}$
Задача 9: 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Задача 10: ^[1-9][0-9]{5}$
