New Roads Queries
There are n cities in Byteland but no roads between them. However, each day, a new road will be built. There will be a total of m roads. Your task is to process q queries of the form: "after how many days can we travel from city a to city b for the first time?" Input The first input line has three integers n, m and q: the number of cities, roads and queries. The cities are numbered 1,2,\dots,n.
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solution.cppC++17
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