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Chef and the Gatekeeper

Chef has reached a treasure island and the gatekeeper of the treasure has given the Chef a question. Correct answer leads the Chef through the gate and to the treasure. You as his companion help him solve the question. The question: Given a string S the consist of only characters 'R' and 'K'. You need to choose two indices i and j (within the string length) and flip all the characters between th

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L1 Observation
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L4 Pseudo-code
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L5 Full solution
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solution.cppC++17

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