zxiaopp的专栏

Almost prime numbers are the non-prime numbers which are divisible by only a single prime number. In this problem your job is to write a program which finds out the number of almost prime numbers

 Semi-prime H-numbers Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 8250   Accepted: 3569 Description This problem is based on an exercise of David Hilb