Basic

Switch Case

Goto

Operators

if Statement

Nested if

While Loop

For Loop

Patterns

Array

2D Array

String Function Example

Pointers

Recursion Function

Structure

Excersises

Others


Count Number of Digits in a Given Number


C program to Count number of digits in a given number using while loop.

Example : pgm.c

#include<stdio.h>
int main(){
    int d=0,n;
    printf("\nEnter the Number : ");
    scanf("%d",&n);
    while(n!=0){
        n=n/10;
        d++;
    }
    printf("\nNo of Digits : %d",d);
    return 0;
}

Output:

Enter the Number : 852147
No of Digits : 6