摘要： Pseudoprime numbers Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 8529 Accepted: 3577 Description Fermat's theorem states that for any pr 阅读全文

摘要： Semi-prime H-numbers Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 8706 Accepted: 3809 Description This problem is based on an exercise o 阅读全文

摘要： X-factor Chains Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6501 Accepted: 2023 Description Given a positive integer X, an X-factor cha 阅读全文

摘要： Wireless Network Time Limit: 10000MS Memory Limit: 65536K Total Submissions: 22977 Accepted: 9613 Description An earthquake takes place in Southeast A 阅读全文

摘要： K Best Time Limit: 8000MS Memory Limit: 65536K Total Submissions: 8458 Accepted: 2163 Case Time Limit: 2000MS Special Judge Description Demy has n jew 阅读全文

摘要： Dropping tests Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 9329 Accepted: 3271 Description In a certain course, you take n tests. If yo 阅读全文

摘要： Drying Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 13057 Accepted: 3358 Description It is very hard to wash and especially to dry cloth 阅读全文

摘要： River Hopscotch Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 11155 Accepted: 4785 Description Every year the cows hold an event featurin 阅读全文

摘要： Aggressive cows Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10728 Accepted: 5288 Description Farmer John has built a new long barn, wit 阅读全文

摘要： Cable master Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 36288 Accepted: 7743 Description Inhabitants of the Wonderland have decided to 阅读全文