摘要： B. Kefa and Company time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output B. Kefa and Company 阅读全文

摘要： C. Kefa and Park time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output C. Kefa and Park time l 阅读全文

摘要： D2. Magic Powder - 2 time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output The term of this pro 阅读全文

摘要： Though Rujia Liu usually sets hard problems for contests (for example, regional contests likeXi’an 2006, Beijing 2007 and Wuhan 2009, or UVa OJ contes 阅读全文

摘要： Description All submissions for this problem are available. Read problems statements in Mandarin Chinese, Russian and Vietnamese as well. Chef is a bi 阅读全文

摘要： Description All submissions for this problem are available. Read problems statements in Mandarin Chinese, Russian and Vietnamese as well. Chef is the 阅读全文

摘要： All submissions for this problem are available. Read problems statements in Mandarin Chinese, Russian and Vietnamese as well. You might have heard abo 阅读全文