Machine

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### Problem Statement Charlie found a machine while on exploration. He brought the machine to you but you realize that first you need to unlock the machine with a series of steps. Luckily, Charlie had also found a paper containing series of numbers to unlock the machine in $T$ steps. Each step requires an input $K$ to proceed. But unfortunately, the key of digit $7$ is broken. You also find

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L5 Full solution

L5 unlocks only if you insist twice

solution.cppC++17

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