JosephLand

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Nick lives in a country named JosephLand. JosephLand consists of N cities. City 1 is the capital city. There are N - 1 directed roads. It's guaranteed that it is possible to reach capital city from any city, and in fact there is a unique path from any city to the capital city. Besides, you can't cross roads for free. To pass a road, you must have a ticket. There are total M tickets. You can not h

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L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

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L5 Full solution

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solution.cppC++17

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