摘要： E. Phone Talkstime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputCool J has recently become a businessman Mr. Jackson, and he has to make a lot of phone calls now. Today he has n calls planned. For each call we know the moment ti (in seconds since t 阅读全文

摘要： D. Ice Sculpturestime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe Berland University is preparing to celebrate the 256-th anniversary of its founding! A specially appointed Vice Rector for the celebration prepares to decorate the campus. In th 阅读全文

摘要： B. Taxitime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAfter the lessons n groups of schoolchildren went outside and decided to visit Polycarpus to celebrate his birthday. We know that the i-th group consists of si friends (1 ≤ si ≤ 4), and they 阅读全文

摘要： A. Next Roundtime limit per test3 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard output"Contestant who earns a score equal to or greater than the k-th place finisher's score will advance to the next round, as long as the contestant earns a positive score..." 阅读全文