Problems from Waterloo Programming Contest 2003-09-20

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Basic Remains 1017 461 45% 0.01 407 365 90% 3.2
Combination Lock 2511 1103 44% 0.00 1070 933 87% 2.5
Genealogical Research 850 144 17% 0.00 144 115 80% 3.7
Russian Dolls 1331 39 3% 0.00 77 30 39% 7.9
Treasure Map 235 93 40% 0.01 76 63 83% 6.1