Tour Planning

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Professor PariBrajika wishes to plan a tour from Kharagpur to Himalpur using Pushpak Travels. There are K tourist locations serviced by Pushpak Travels, numbered from 1 to K, including Kharagpur (numbered 1) and Himalpur (numbered K). It is only possible to travel directly from some locations to some other locations. For any pair of locations for which direct travel is possible, the travel from t

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