Dinner by Candlelight

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### Read problem statements in [Russian](https://www.codechef.com/download/translated/LTIME94/russian/DATE1.pdf) Chef is having a candlelit dinner with his girlfriend at his place. Currently, it is time $0$, Chef just managed to light a candle, but he is out of matchsticks. Since Chef has an infinite supply of (unlit) candles, he can use the following strategy: each second (starting at time

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solution.cppC++17

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