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| # include <stdio.h>
# include <math.h>
int judge(int a);
int main (void)
{
int a,b,c=0;
for (a=101;a<=200;a++)
{
b = judge(a);
if (b == 1)
{
c += 1;
}
}
printf("101-200 have prime number:%d\n",c);
return 0;
}
int judge (int a)
{
int b,c,i;
b = sqrt(a);
for (i=2;i<=b;i++)
{
if (a%i==0)
{
break;
}
}
if (i>b)
{
c = 1;
}
else
{
c = 0;
}
return c;
}
|
