Marking the Borders

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Chef has been recruited to Chefland's Army. The army of a neighbouring country is continuosly infiltrating the Borders, since there is no proper marking or fencing on the land, chef's commanding officer(CO) commanded him to place milestone markings on the border. CO tells Chef that the border is an infinite $x$ axis with non-negative integer coordinates starting from $0$ and gives him four intege

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solution.cppC++17

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