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code is not compiling!! urgent

qwertyking (50)
Write your question here.
I'm using visual studio 2012, and the code seemed to be right but it's not compiling. anyone find the problem with this code??
[code]
Put the code you need help with here.
[#include<stdio.h>
#include<string.h>
#include<math.h>
bool isprime(int);
int countprime(int);
bool isprime(int n)
{
int i,j,k,f=0;
int d=sqrt(n);
for(i=2;i<=d;i++)
{
if(n%i==0)
{
f=1;
i=i+d;
}
}
if(f==1)
return false;
else
return true;

}
int countprime(int n)
{
int i,j,k,count=0;
for(i=2;i<=n;i++)
{
int f=0;
int d=sqrt(i);
for(j=2;j<=d;j++)
{
if(i%j==0)
{
f=1;
j=j+n;
}
}
if(f==0)
count++;

}
return count;
}
int main()
{

int i,j,n;
bool k;
printf("Enter an integer :\n");
scanf("%d",&n);
while(n>=0)
{
if(n>1)
{
k=isprime(n);
if(k)
printf("%d is prime ? True\n",n);
else
printf("%d is prime ? False\n",n);
j=countprime(n);
printf("No of primes <= %d : %d\n",n,j);
}
else if(n==0)
{
printf("%d is prime ? False\n",n);
printf("No of primes <= %d : %d\n",n,0);
}
else if(n==1)
{
printf("%d is prime ? False\n",n);
printf("No of primes <= %d : %d\n",n,0);
}
printf("Enter another integer :\n");
scanf("%d",&n);
}
return 0;
}
/code]
Aceix (1118)
Any error messages?

Aceix.
wildblue (1505)
I just reformatted the code to make it easier to read.

If the compiler is going through the code top to bottom, I don't think it will know what n is in the functions (or it will have a garbage uninitialized value). I'd order the code like this:

- function prototypes
- main
- functions


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#include<stdio.h>
#include<string.h>
#include<math.h>

bool isprime(int);
int countprime(int);


bool isprime(int n)
{
	int i,j,k,f=0;
	int d=sqrt(n);
	
	for(i=2;i<=d;i++)
	{
		if(n%i==0)
		{
			f=1;
			i=i+d;
		}
	}

	if(f==1)
		return false;
	else 
		return true;
}


int countprime(int n)
{
	int i,j,k,count=0;
	for(i=2;i<=n;i++)
	{
		int f=0;
		int d=sqrt(i);
		
		for(j=2;j<=d;j++)
		{
			if(i%j==0)
			{
				f=1;
				j=j+n;
			}
		}

		if(f==0)
			count++;

	}

	return count;
}


int main()
{

	int i,j,n;
	bool k;

	printf("Enter an integer :\n");
	scanf("%d",&n);

	while(n>=0)
	{
		if(n>1)
		{
			k=isprime(n);

			if(k)
				printf("%d is prime ? True\n",n);
			else
				printf("%d is prime ? False\n",n);

			j=countprime(n);

			printf("No of primes <= %d : %d\n",n,j);
		}

		else if(n==0)
		{
			printf("%d is prime ? False\n",n);
			printf("No of primes <= %d : %d\n",n,0);
		}

		else if(n==1)
		{
			printf("%d is prime ? False\n",n);
			printf("No of primes <= %d : %d\n",n,0);
		}

		printf("Enter another integer :\n");
		scanf("%d",&n);
	}

	return 0;
}
Last edited on
qwertyking (50)
@Aceix
my engineer major friend fixed it, he said it was overloaded but thank you everythings over

@wildblue
how do I write the code like you?? I don't know how to do it on this site QQ
wildblue (1505)
how do I write the code like you?? I don't know how to do it on this site QQ


I just copied your code into a text editor and put in tabs to indent the code. I'd do the same thing in Visual Studio - tab to indent code. Then when it's copied to the forum and put it between the code tags, it keeps the formatting.
Aceix (1118)
@wildblue
how do I write the code like you?? I don't know how to do it on this site QQ

Code tags: http://www.cplusplus.com/articles/jEywvCM9/

Aceix.
giblit (3750)
qwerty you are missing the '[' in your code tags that is why yours is plain old text.
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