ACway的专栏

由于是按y为第一关键字进行排序

Ping pongTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3964    Accepted Submission(s): 1467Problem DescriptionN(3Each play

KiKi's K-NumberTime Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2645    Accepted Submission(s): 1218Problem DescriptionFor the k-

Minimum Inversion NumberTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11121    Accepted Submission(s): 6842Problem Description

Argestes and Sequence                                                         Time Limit: 5000/2500 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)                                   

MooFestTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 5395 Accepted: 2329DescriptionEvery year, Farmer John's N (1 <= N <= 20,000) cows attend "MooFest",

Inner VerticesTime Limit: 5000MS Memory Limit: 65536KTotal Submissions: 1692 Accepted: 446Case Time Limit: 2000MSDescriptionThere is an infinite square grid