HDU 3240 Counting Binary Trees(卡特兰数+分解素数+扩展欧拉求逆元) Counting Binary Trees
Counting Binary TreesTime Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 485 Accepted Submission(s): 146Problem DescriptionThere