my atcoder name is g_p_y,I found myself stucked in rating around [650,750].
How to break it?
p.s. For example,in ABC394-E,I thought $$$O(n^3)$$$ Floyd in the competition,but the right solution is $$$O(n^4)$$$ bfs?
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practice more. shut up if you have no skills.
and by the way, what's your floyd-way in last abc's e and which status did your program receive?