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Leetcode 815. Bus Routes https://leetcode.com/problems/bus routes/ with a small follow up. Part 1 was the same as Bus Routes i.e Input: routes = [[1,2,7],[3,6,7]], source = 1, target = 6 Output: 2 Explanation: The best strategy is take the first bus to the bus stop 7, then take the second bus to the bus stop 6. Part 2 was to return the number of ways to reach target with minimum buses or in other words, distinct shor...