摘要：Matt has N friends. They are playing a game together. Each of Matt’s friends has a magic number. In the game, Matt selects some (could be zero) of his 阅读全文

摘要：A triangle is a Heron’s triangle if it satisfies that the side lengths of it are consecutive integers t−1, t, t+ 1 and thatits area is an intege 阅读全文

摘要：C Looooops Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 29061 Accepted: 8360 Description A Compiler Mystery: We are given a C-language s 阅读全文

摘要：Strange Way to Express Integers Time Limit: 1000MS Memory Limit: 131072K Total Submissions: 17321 Accepted: 5828 Description Elina is reading a book w 阅读全文

摘要：A/B Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6784 Accepted Submission(s): 5389 Problem Des 阅读全文

摘要：Wei Qing (died 106 BC) was a military general of the Western Han dynasty whose campaigns against the Xiongnu earned him great acclaim. He was a relati 阅读全文