Calculating modulus

[programmer1]

Hi!

I am working on a project and I am not taking modulus! The sign is "%" but it doesn t work! Take a look this,please!

if( (min+max)<21)


printf( "The modula is : %d\n",min+max);
if ((min+max)>=21)
printf("The modula is : %d % 21",min+max);

Of course it is not the whole code.I am trying to take modula21, but where is wrong???The whole code is

#include<stdio.h> 
main() 
{ 
int n,m,i,min,max; 


printf("Please enter a positive integer:"); 
scanf("%d",&n); 
printf("Enter integers:"); 
scanf("%d",&m); 
max=m;
min=m; 
for(i=2;i<=n;i++) 
{ 
scanf("%d",&m); 
if(m<min) 
min=m; 
if(m>max)
max=m;
} 
printf("The smallest number is %d\nThe greatest number is %d\n",min,max);
printf("The sum is : %d\n",min+max);
if( (min+max)<21)


printf( "The modula is : %d\n",min+max);
if ((min+max)>=21)
printf("The modula is : %d % 6",min+max);


}

[spaghetticode]

printf() knows nothing about arithmetic. Any % inside it is just the sign that a placeholder for an argument will follow.

[whiteflags]

printf("The modula is : %d % 6",min+max)

Maybe you mean (min+max) % 6 outside of the string.

The percent sign has a special meaning in printf, it is called a conversion specifier and it marks where printf has to convert data to text.

[programmer1]

printf("The modula is : (min+max) % 21",min+max);

I wrote this still not working! " The modula is <min+max> is written! And I delete printf, but this time nothing is written???? I use scanf , still nothing!

[Salem]

To get printf() to print a %, you write something like

printf("The modula is : %d %% 21",min+max);

[programmer1]

This time it is "The modula is : number % 21" . It is better. But still it can t divide by 21. The operation can not work. Why?? WhYYYYYY?

[iMalc]

You're still not using % outside of the string, like how you use + outside of the string.

[programmer1]

Thanks Imalc . You were right. It works !

[whiteflags]

You're welcome.

[programmer1]

@ whiteflags I said "thanks" million times But sure you can not hear. I am sorry forgetting to write. But again thank you all.

[spaghetticode]

I still get the impression you get the concept of printf() and scanf() wrong. Revise this. What book are you working with?

[programmer1]

I have a deitel. I know that a scanf allow you to enter an element from keyboard and printf write. Am I wrong??

[CommonTater]

Ok... programming lesson...

Learn how to look things up for yourself.

If you don't have the library documentation for your compiler ... get it ... and ... use it.

It's very normal for working programmers to "look stuff up" dozens, even hundreds of times a day.

(but yes, your assumption is correct)

[programmer1]

Thanks Commontater