素数 艺术美

/* Note:Your choice is C IDE */#include "stdio.h"#include"math.h"int issushu(int b){int a;for(a=2;a<b;a++){  if(b%a==0)    return 0;}return 1;} main (){   int sum;int c;  sum=0;  for(c=100;c<=200;c++)  {     if(issushu(c))       sum+=c;   }     printf("%d",sum);}