One-Step Stack

Here you need to check whether the values in a stack form a clean increasing chain. Given stack, where the bottom is on the left and the top is on the right, return True if each next element is exactly 1 greater than the previous one. If this order breaks even once, return False.

Примеры

Ввод
[3, 4, 5, 6, 7]
Вывод
True
Ввод
[3, 4, 6, 7]
Вывод
False
Ввод
[3, 2, 1]
Вывод
False

Нужно реализовать

def is_consecutive(stack: list[int]) -> bool:

Теги

stack
PostgreSQLv16

Hawn jidher ir-riżultat tat-tħaddim tal-kodiċi

Tests12
Visible tests
Test moħbi 7
Test moħbi 8
Test moħbi 9
Test moħbi 10
Test moħbi 11
Test moħbi 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.

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