int isPrime(int n)那部分好像不行，输入3，30,只打印3, 后面就通不过,大侠们帮忙看看啊,

int isPrime(int);
int findPrime (int, int ) ;
int findSquare(int,int);

int sum;

int main (void)
{
int x,y,sumPrime;

printf("Enter two numbers\n");
scanf("%d %d",&x,&y);

while(x <= y)
{
printf("Prime: ");
sumPrime=findPrime( x, y);

printf("\nSquare: ");
findSquare(x,y);

printf("\nsum of all primes and squares:%d",sum);

printf("\nEnter two numbers");
scanf("%d %d",&x,&y);
}
return 0;
}

int findPrime (int a, int b )

int sumPrime=0,c=0;

while(a<=b)

if(isPrime(a))

printf("%d ",a);
c++;
sumPrime+=a;
a++;

}

printf("\nPrime count = %d\n",c);

return 0 ;

int isPrime(int n)

int i;

for(i=2;i<n;i++)

if(n%i==0)

return 0;

return 1;

int findSquare ( int a,int b)

int i,t,c=0,sumSquare = 0;

for(i=2; i*i<=b;i++)

printf("%d ", i*i);

printf("\nsumsquare is %d",sumSquare);

printf("\nSquare count = %d\n",c);

return sumSquare;