summer_zhou

摘要： 哪里不对？？有重复时注意排名顺序。 1 2 3 3 5 不是 1 2 3 3 4 。。。。。#includetypedef struct tagStudent{ char id[7]; int grades[4]; //acme int ranks[4]; //acme}Student;typedef int (*CmpFun)(const void *a,const void *b);int cmpa(const void *a ,const void *b){ Student* sa = (Student*)a; Student* sb = (Studen... 阅读全文

摘要： Q：Areversible primein any number system is a prime whose "reverse" in that number system is also a prime. For example in the decimal system 73 is a reversible prime because its reverse 37 is also a prime.Now given any two positive integers N (1#includeint isPrime(int n){ int i; if(n==0||n= 阅读全文