Exponential time algorithms

Problems

Name Solved / Tries Average tries Average tries to solve
A Exam Manipulation 34/58 (59%) 1.71 1.71
B Geppetto 34/94 (36%) 2.76 2.76
C Flashing Fluorescents 1/1 (100%) 1.00 1.00
D Bracket Pairing 1/5 (20%) 2.50 2.00