Emiya丶的博客

Co-primeTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6704    Accepted Submission(s): 2653Problem Description Given a number N, you are asked ...

6991: Four-tuples时间限制: 10 Sec  内存限制: 128 MB提交: 173  解决: 44[提交][状态][讨论版][命题人:admin]题目描述Given l1,r1,l2,r2,l3,r3,l4,r4, please count the number of four-tuples (x1,x2,x3,x4) such that li≤ xi≤ ri and x1≠x2...