Problems from Nada Open 2005

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Best Compromise0.00135102493792%2.1Easyen
Easter Eggs0.171366482450%8.9Harden
Ice Floe Jumping0.022867602847%9.2Harden
Quadratic Residues0.00751219982%4.3Mediumen
Shovelling Snow0.011138783444%8.9Harden