摘要：
Two little greedy bears have found two pieces of cheese in the forest of weight a and b grams, correspondingly. The bears are so greedy that they are 阅读全文
摘要：
Polycarpus loves hamburgers very much. He especially adores the hamburgers he makes with his own hands. Polycarpus thinks that there are only three de 阅读全文
摘要：
time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output time limit per test 1 second time limit p 阅读全文