Cross

链接：戳这里 B. Mischievous Mess Makers time limit per test1 second memory limit per test256 megabytes inputstandard input outputstandard output It is a balmy spring afternoon, and Farmer John

链接：戳这里 The k-th Largest Group Time Limit: 2000MS Memory Limit: 131072K Description Newman likes playing with cats. He possesses lots of cats in his home. Because the number of cats i

链接：戳这里 KPI Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Problem Description 你工作以后, KPI 就是你的全部了. 我开发了一个服务，取得了很大的知名度。数十亿的请求被推到一个大管道后同时服

链接：戳这里 C. Little Artem and Random Variable time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Little Artyom decided to study probab

链接：戳这里 Arrange    Time Limit: 8000/4000 MS (Java/Others)   Memory Limit: 262144/262144 K (Java/Others) 问题描述 Cupid一不小心将爱情之箭射到了自己，他爱上了Psyche。 这引起了他的母亲Venus的注意。Venus将Psyche带到了一堆打乱的谷堆旁。

链接：戳这里 World is Exploding Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Problem Description Given a sequence A with length n,count how many quad

链接：戳这里 Different GCD Subarray Query Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Problem Description This is a simple problem. The teacher give