摘要： ContactIOI'98The cows have developed a new interest in scanning the universeoutside their farm with radiotelescopes. Recently, they noticed a verycurious microwave pulsing emission sent right from the centre of thegalaxy. They wish to know if the emission is transmitted by someextraterrestrial f 阅读全文

摘要： Stamps Given a set of N stamp values (e.g., {1 cent, 3 cents}) and an upperlimit K to the number of stamps that can fit on an envelope, calculate thelargest unbroken list of postages from 1 cent to M cents that can becreated. For example, consider stamps whose values are limited to 1 cent and 3cent. 阅读全文