Thread: Help with a program.thanks in advance.

Code:

#include<stdio.h>

int main()
{
    int x,y;
for(y=1;y<=1000;y=y+1){
    x=y;
if(x==1 || x==2 || x==3 || x==5 || x==7 || x==11)
{printf("\nprime%d",x);}

else if(x%2==0 || x%3==0 || x%5==0 || x%7==0 || x%11==0)
{printf("\nnot prime%d",x);}

else
{
    printf("\nprime%d",x);
}
}
}

this program should start from 1 and then print all numbers and define the properties(prime or not) of that number.But the number is starting from 704(or something) But not from 1.

if i start it from 1 and end before 100 it works fine..

i have debugged it.no problem shown.

IT all works fine.

but what is the problem with the output?why it starts from 700???

please compile and debug it.

thanks

What does your program output when y is equal to 169?

Originally Posted by DeadPlanet

What does your program output when y is equal to 169?

It will be prime, you can run the program.

May be on your console you can check from 700 or something, your program is displaying prime/nor prime from 1 to 1000

Originally Posted by RockyMarrone

It will be prime, you can run the program.

And you don't see a problem with 13*13 being prime?

I'd rather you didn't answer the questions that I pose to the OP to make them think about the errors in their program.

Originally Posted by DeadPlanet

And you don't see a problem with 13*13 being prime?

I'd rather you didn't answer the questions that I pose to the OP to make them think about the errors in their program.

"What does your program output when y is equal to 169?" replied run the program because program was running...

And about another one, this website doesn't owned by you, so where I need to comment and answer I don't have to take your permission.

"What does your program output when y is equal to 169?" replied run the program because program was running...

I don't understand what you mean by this.

And about another one, this website doesn't owned by you, so where I need to comment and answer I don't have to take your permission.

This statement is 100% correct.

guys i just have problem that why isnt the program displaying all results???using codeblock

and the program doesnt work.thanks for pointing out the mistake

check till 100!!
I mean execute the for loop till 100 only and checks the output

You are problably running out of console space if it starts that high, just a thought try making the loop go to 50 and see if it starts from the beginning.

redirect your output to a file or pipe it to 'more' to see if initial results are flying off the screen

I have compiled this program in Ubuntu10.10 and it's working.means no execution problem and output starting from 1 and goes on...