Ciel and password cracking

CodeChefRating 3285Open on judge ↗

Chef Ciel now faces a crisis situation. It is a really complicated situation, please read carefully. Here, your task is to calculate the minimum expected time for slipping out of the crisis situation. As you know, Ciel uses a safe having Box and Ball System as the combination of the safe (See NOTE 1). And, of course, Ciel now knows that the number of the valid combinations for the safe is real

HINT LADDERno hints yet

L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

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L5 Full solution

L5 unlocks only if you insist twice

solution.cppC++17

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