Swap Stack Pairs
The stack is given as a list: the bottom is on the left, and the top is on the right. Given stack, go through its elements from bottom to top in pairs. Swap the two elements in each pair. If there is an odd number of elements, leave the final top element unchanged.
Примеры
Ввод
[3, 8, 17, 9, 1, 10]Вывод
[8, 3, 9, 17, 10, 1]Ввод
[3, 8, 17, 9, 1]Вывод
[8, 3, 9, 17, 1]Ввод
[]Вывод
[]Нужно реализовать
def switch_pairs(stack: list[int]) -> list[int]:
Теги
stack
Conectează-te pentru a vedea istoricul soluțiilor trimise
Conectează-teConectează-te pentru a folosi Mentorul AI
Conectează-teTests12
Visible tests
Test ascuns 7
Test ascuns 8
Test ascuns 9
Test ascuns 10
Test ascuns 11
Test ascuns 12
They run when you press "Submit" — your whole solution is checked against them so you can't hard-code answers for the visible cases.
Focus radio
Paused · SomaFM · Fluid