Comments : Three Paths on a Tree

• Why is the diameter optimal? Comment by Dhruv_Gheewala
• Clever solution using DFS by Lezendary_sandwich
• DP Approach by Gary2005
• Alternate DP Appraoch, easier(?) by mohmahkho
• 4 DFS Approach by Mayank_Pushpjeet
• Best Explanation for solving with DFS only by deleting edges by ManuelLoaiza