摘要： Email Aliases Polycarp has quite recently learned about email aliases. Of course, he used to suspect that the case of the letters doesn't matter in em 阅读全文

摘要： Anniversary party Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9361 Accepted Submission(s): 40 阅读全文

摘要： Winner The winner of the card game popular in Berland "Berlogging" is determined according to the following rules. If at the end of the game there is 阅读全文

摘要： Ancient Berland Circus Nowadays all circuses in Berland have a round arena with diameter 13 meters, but in the past things were different. In Ancient 阅读全文

摘要： Bear and Finding Criminals There are n cities in Bearland, numbered 1 through n. Cities are arranged in one long row. The distance between cities i an 阅读全文