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TautologyTime Limit:1000MSMemory Limit:65536KTotal Submissions:7716Accepted:2935DescriptionWFF 'N PROOF is a logic game played with dice. Each die has six faces representing some subset of the possible symbols K, A, N, C, E, p, q, r, s, t. A Well-formed formula (WFF) is any string of these symbo 阅读全文
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TilingTime Limit:1000MSMemory Limit:65536KTotal Submissions:6746Accepted:3291DescriptionIn how many ways can you tile a 2xn rectangle by 2x1 or 2x2 tiles?Here is a sample tiling of a 2x17 rectangle.InputInput is a sequence of lines, each line containing an integer number 0 <= n <= 250.OutputFo 阅读全文
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Y2K Accounting BugTime Limit:1000MSMemory Limit:65536KTotal Submissions:8282Accepted:4106DescriptionAccounting for Computer Machinists (ACM) has sufferred from the Y2K bug and lost some vital data for preparing annual report for MS Inc.All what they remember is that MS Inc. posted a surplus or a def 阅读全文
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The Pilots Brothers' refrigeratorTime Limit:1000MSMemory Limit:65536KTotal Submissions:15136Accepted:5660Special JudgeDescriptionThe game “The Pilots Brothers: following the stripy elephant” has a quest where a player needs to open a refrigerator.There are 16 handles on the refrigerator door. Ev 阅读全文