Best Route in ChefLand

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ChefLand is a strange place. In the middle of deepest ocean, Code-sea, there are two small islands P and Q. Also there is one big circular country, known as C in the middle of the ocean. This country do not allow anyone inside their airspace ever. However, there is roadways in the perimeter of the (circular) country. Anyone is allowed in the road at any time. A lot of airports are available in tha

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solution.cppC++17

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