摘要：
Minimum Inversion NumberTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6815Accepted Submission(s): 4158Problem DescriptionThe inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i < j and ai 阅读全文
摘要：
BillboardTime Limit: 20000/8000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6749Accepted Submission(s): 3053Problem DescriptionAt the entrance to the university, there is a huge rectangular billboard of size h*w (h is its height and w is its width). The board is the 阅读全文
摘要：
Mayor's postersTime Limit: 1000MSMemory Limit: 65536KTotal Submissions: 33075Accepted: 9608DescriptionThe citizens of Bytetown, AB, could not stand that the candidates in the mayoral election campaign have been placing their electoral posters at all places at their whim. The city council has fin 阅读全文
摘要：
1470. UFOsTime limit: 5.0 secondMemory limit: 64 MBVasya is a ufologist and his duties include observing Unidentified Flying Objects (UFOs) in the part of space bounded by a cubeN × N × N. The cube is divided into cubic sectors 1 × 1 × 1. During the observation, the following eve 阅读全文
摘要：
BombTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 3716 Accepted Submission(s): 1298Problem DescriptionThe counter-terrorists found a time bomb in the dust. But this time the terrorists improve on the time bomb. The number sequence of the time b 阅读全文
摘要：
Anniversary partyTime Limit: 1000MSMemory Limit: 65536KTotal Submissions: 3203Accepted: 1773DescriptionThere is going to be a party to celebrate the 80-th Anniversary of the Ural State University. The University has a hierarchical structure of employees. It means that the supervisor relation forms a 阅读全文