persistent codeants

摘要： Problem DescriptionZero has an old printer that doesn't work well sometimes. As it is antique, he still like to use it to print articles. But it is too old to work for a long time and it will certainly wear and tear, so Zero use a cost to evaluate this degree. One day Zero want to print an artic 阅读全文

摘要： 1049. Brave BalloonistsTime limit: 2.0 second Memory limit: 64 MBTen mathematicians are flying on a balloon over the Pacific ocean. When they are crossing the equator they decide to celebrate this event and open a bottle of champagne. Unfortunately, the cork makes a hole in the balloon. Hydrogen is 阅读全文