INSOMNIA 2014 possible cheating

In the question “It is Axis time” (INSM01), the solutions submitted by (an accepted as well) cooldragon, ankit_1991, h1t35h, ashwinis, ayusha0711, miteshag, dicoder and almost all of the submitted solutions are word-to-word same. How is this possible? Not even a change of variable name. Please look into the matter. All of the top submitted solutions are same.

Problem link :-


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