Problems from Nada Open 2005

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Best Compromise0.0013598290292%2.1Easyen
Easter Eggs0.171366401948%8.8Harden
Ice Floe Jumping0.022867592847%9.1Harden
Quadratic Residues0.00751209982%4.0Mediumen
Shovelling Snow0.011138783545%8.5Harden