Conquer Beyond the Wall
**Keywords:** World: A combination of nations Nation: A group of islands having same symbol (can be thought of as convex boundary over all islands having same symbol. 2 or more nations can intersect) Island: Represented by a symbol and its coordinate The Earth consist of many islands. Each island is identified by its symbol and position. We have a crazy villain with us who wants to rule a worl
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solution.cppC++17
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