Candle Lights

Explanation Amar returns back to his village where there is no electricity. Amar decides to buys candles to solve this problem. His village home has S rooms where he can light out candles. But every candle lasts only a certain amount of time; blue candles take x minutes, red candles take y minutes and green candles take z minutes. Amar can only replace a candle once it’s empty. However he can only