Problems from Waterloo Programming Contest 2003-09-20

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Basic Remains 895 425 47% 0.01 373 335 90% 3.3
Combination Lock 2455 1078 44% 0.00 1039 905 87% 2.5
Genealogical Research 829 139 17% 0.00 139 110 79% 3.7
Russian Dolls 1279 37 3% 0.00 71 28 39% 8.8
Treasure Map 211 87 41% 0.01 72 59 82% 6.1