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Oct 10th, 2006

while loop

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Hi i have this program and have a problem it is a basic program for exponents and now i need to add a while loop so that if the user enters a number greater that 10 it asks them to input a number lower or equal to 10, here is my code can someone help me?.

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#include <stdio.h>
main( )
{
 /*  y  */
 /* calculate x  */
 /*    */
 /* where x and y are integers and y >= 0 */
 int base, power;
 long result = 1;
 int counter = 0;
 
 while ( x <= 10);
 
 
 
 printf("Enter the base number : ");
 scanf("%d",&base);
 printf("Enter the nth power to which base will be raised");
 scanf("%d",&power);
 {
 for (counter++ < power)
  result = result * base;
 }
 printf("The base of %d raised to",base the %dth power is %
ld\n",power,result);
 
 return 0;
 
}}}
 
#include <stdio.h>
main( )
{
 /*  y  */
 /* calculate x  */
 /*    */
 /* where x and y are integers and y >= 0 */
 int base, power;
 long result = 1;
 int counter = 0;
 
 while ( x <= 10);
  
 

 printf("Enter the base number : ");
 scanf("%d",&base);
 printf("Enter the nth power to which base will be raised");
 scanf("%d",&power);
 {
 for (counter++ < power)
  result = result * base;
 }
 printf("The base of %d raised to",base the %dth power is %
ld\n",power,result);
 
 return 0;
 
}}}

Last edited by ~s.o.s~; Oct 11th, 2006 at 1:00 pm. Reason: Added code tags, learn to use them yourself

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Oct 10th, 2006

Re: while loop

1. Please edit your post to use code tags to preserve spacing and tabs.

2. main() must be declared like this:

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int main()
{
   // blabla
 
 
  return 0;
}
int main()
{
   // blabla


  return 0;
}

I realize neither of the above answer your questions, but fix those and we will look at your post again.

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Oct 10th, 2006

Re: while loop

x is not declared as a variable anywhere that I can see. this should give a complier error.
Also, your while statement is terminated by a semicolon. This would work for do-while statement but not when the using a while by itself. If using a while in this way it should be followed by braces surrounding the code to be executed during each iteration of the loop.

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Oct 11th, 2006

Re: while loop

Quote ...

C Syntax (Toggle Plain Text)
while ( x <= 10);
while ( x <= 10);

Quote ...

Also, your while statement is terminated by a semicolon

This also has another problem, bacause when x is declared the program will just stay on this line ( while(1) )

Quote ...

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for (counter++ < power)
for (counter++ < power)

I think what you're trying to do is:

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for (counter = 0; counter < power; counter++)
{
}
 
for (counter = 0; counter < power; counter++)
{
}

Quote ...

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result = result * base;
result = result * base;

hmmm, int to long conversion....

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