C Program to Count Number of Digits of a Number (Integer)

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ghaidaib

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2022-05-12

194

Easy

Write A C Program to Count Number of Digits of a Number (Integer) Using While Loop.

Logic:

There are two methods for counting a number of digit in a number

C programming, examples, C programming examples,

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ghaidaib

2022-05-12

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#include<stdio.h>
#include<math.h>
int main()
{
   int n,count=0;
  
   printf("Enter Any Number To Count Digit : \n\n");
   scanf("%d", &n);
  
   count=log10(n)+1;
   
   printf("\nNumber of Digits Is = %d",count);
 return 0;
}

Output:

Enter Any Number To Count Digit :

12345

Number Of Digit Is =5

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ghaidaib

2022-05-12

need an explanation for this answer? contact us directly to get an explanation for this answer

#include<stdio.h>
int main()
{
   int n,count=0;
  
   printf("Enter Any Number To Count Digit : \n\n");
   scanf("%d", &n);
  
   while(n!=0)
   {
       n/=10;          
       ++count;
   }
   printf("\nNumber of Digits Is = %d",count);
 return 0;
}

Output:

Enter Any Number To Count Digit:

123456789

Number Of Digit Is =9

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total answers (2)

C Program to Count Number of Digits of a Number (Integer)

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Loops C Programs for Practice

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