Lucky & Unlucky Prisoners

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The war was over, Wonderland won the war and many lierland soldiers were captured by Wonderland army and brought them to prisons in Wonderland. WonderKing decided to release many of them only keeping very dangerous people in the prison. Each prisoner is given an integer between 1 to 100 to his own. You are given a S set of prisoners sorted in ascending order and another prisoner whose number is X

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L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

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L5 Full solution

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solution.cppC++17

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