摘要：
PacketsTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 32745Accepted: 10860DescriptionA factory produces products packed in square packets of the same height h and of the sizes 1*1, 2*2, 3*3, 4*4, 5*5, 6*6. These products are always delivered to customers in the square parcels of the same h 阅读全文
摘要：
Counterfeit DollarTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 30988Accepted: 9699DescriptionSally Jones has a dozen Voyageur silver dollars. However, only eleven of the coins are true silver dollars; one coin is counterfeit even though its color and size make it indistinguishable from t 阅读全文
摘要：
Maya CalendarTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 49114Accepted: 15033DescriptionDuring his last sabbatical, professor M. A. Ya made a surprising discovery about the old Maya calendar. From an old knotted message, professor discovered that the Maya civilization used a 365 day lon 阅读全文
摘要：
DNA SortingTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 60087Accepted: 23717DescriptionOne measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For instance, in the letter sequence ``DAABEC'', this m 阅读全文
摘要：
BiorhythmsTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 85218Accepted: 25836DescriptionSome people believe that there are three cycles in a person's life that start the day he or she is born. These three cycles are the physical, emotional, and intellectual cycles, and they have period 阅读全文
摘要：
I Think I Need a HouseboatTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 65237Accepted: 27410DescriptionFred Mapper is considering purchasing some land in Louisiana to build his house on. In the process of investigating the land, he learned that the state of Louisiana is actually shrinking 阅读全文
摘要：
Financial ManagementTime Limit: 1000MSMemory Limit: 10000KTotal Submissions: 82315Accepted: 39992DescriptionLarry graduated this year and finally has a job. He's making a lot of money, but somehow never seems to have enough. Larry has decided that he needs to grab hold of his financial portfolio 阅读全文
摘要：
DescriptionHow far can you make a stack of cards overhang a table? If you have one card, you can create a maximum overhang of half a card length. (We're assuming that the cards must be perpendicular to the table.) With two cards you can make the top card overhang the bottom one by half a card le 阅读全文