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Chef and Secret Recipe

Chef has a secret recipe, represented by a set of $N$ non-negative integers (note that these integers must be pairwise distinct). Under the current circumstances, he has decided to give it away so that people can try it out at home. However, Chef is so fond of guessing games that he set one condition: he wants you to guess the integers in the recipe. In order to do that, you may ask Chef at mo

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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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