Painting Wall

Painting Wall

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Никола построил простого робота для покраски стены. Стена размечена через каждый метр и каждый участок пронумерован. Роботу для работы дан список действий. Каждая операция описывает какой участок стены необходимо покрасить, как два числа - откуда и докуда включительно. Для примера, операция [1, 5] означает, что будет покрашены секции от 1 до 5 включительно. Операции исполняются в том порядке, как они даны в списке. Если некоторые операции окрашивают один и тот же участок стены, то они считаются, как окрашенные один раз .

Стефан приготовил список действий для робота,...

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