Message Route

CSESGraph AlgorithmsOpen on judge ↗

Syrjälä's network has n computers and m connections. Your task is to find out if Uolevi can send a message to Maija, and if it is possible, what is the minimum number of computers on such a route. Input The first input line has two integers n and m: the number of computers and connections. The computers are numbered 1,2,\dots,n. Uolevi's computer is 1 and Maija's computer is n. Then, there are

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solution.cppC++17

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