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Discussion of Problem 1323. Classmates

Danica Porobic Nice problem, but too big time limit... [9] // Problem 1323. Classmates 25 Jul 2004 23:58
1 second is just enough.
Any hints?
Dmitry 'Diman_YES' Kovalioff Just brute force :) (-) // Problem 1323. Classmates 5 Sep 2004 12:43
Aleksey (BMSTU IU7) Re: Nice problem, but too big time limit... [5] // Problem 1323. Classmates 30 Sep 2004 01:20
just 0.1 sec.
Neumann How can you do it so fast? [4] // Problem 1323. Classmates 5 Feb 2005 10:32
Because of enough time,I used dfs in 0.9sec.
But I think bfs+binary will much faster...

What is your algo?
Lifanov Re: How can you do it so fast? [3] // Problem 1323. Classmates 9 Sep 2005 12:35
I used dfs and get AC with 2.1 sec.
Then i use simple optimization and get Ac with 0.17 sec? It's very simple.
Ilya Rasenstein (Lyceum #40) Re: How can you do it so fast? [2] // Problem 1323. Classmates 6 May 2007 14:35
there is a simple dp-on-subsets solution...
SPIRiT Re: How can you do it so fast? [1] // Problem 1323. Classmates 21 Jun 2007 02:08
I tried to solve it with dp-on-subsets but WA at test 7. Any hints? Also, when I use stricmp in C++, I get CE. Is this function illegal?
Also, are the names unique in case-sensitive sense, or case insensitive? Does the last line in file always contain word 'Tanya'?
hoan Re: How can you do it so fast? // Problem 1323. Classmates 8 Dec 2010 19:28
the last can be change.
Jane Soboleva (SumNU) Re: Nice problem, but too big time limit... // Problem 1323. Classmates 3 Mar 2016 06:58
AC with the help of "if currentTime - startTime > 3.98 then exit"~
Without this limitation, it works almost full 40 seconds on test with maxed N and M.
I feel too lazy to think of effecient ways when i see such a generous time limit...