Scenario A - A guy he wrote codes for two hours, - he got stuck, so went out and bought a coffee took him one hours - during buying the coffee, he got an idea

Scenario A - A guy he wrote codes for two hours, - he got stuck, so went out and bought a coffee took him one hours - during buying the coffee, he got an idea to solve the problem and solved --- Should this 1 hour be counted as work or rest? --- Scenario B A guy he worked as a consultant (pay by hour) - he was off for a day - he got some idea during his off - next day, he solved the problem for a client = Should his off day be considered as work time?