Time taken by one man only . As a person can do only at exactly mid night so , all have to do together only at midnight .
On Aug 18, 3:51 pm, "pg@manit" <gpt.pa...@gmail.com> wrote: > A bunch of men are on an island. A genie comes down and gathers > everyone together and places a magical hat on some people’s heads > (i.e., at least one person has a hat). The hat is magical: it can be > seen by other people, but not by the wearer of the hat himself. To > remove the hat, those (and only those who have a hat) must dunk > themselves underwater at exactly midnight. If there are n people and c > hats, how long does it take the men to remove the hats? The men cannot > tell each other (in any way) that they have a hat. > FOLLOW UP > Prove that your solution is correct. -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.