# Palindromic Number in C

Published on 28 April 2022 (Updated: 25 September 2022) Welcome to the Palindromic Number in C page! Here, you'll find the source code for this program as well as a description of how the program works.

## Current Solution

``````/*
accept an integer, reverse it, compare it with original
print true, if original and reversed number are same
print false, if original and reversed number are same
*/
#include <stdio.h>
#include <stdlib.h>

void palindromic_number(int number){
int temp = number, no_of_digits = 0,reversed_number = 0;

while (temp > 0){
reversed_number = (reversed_number * 10) + (temp % 10);
temp = (int)(temp / 10);
no_of_digits ++;
} /*end of building reverse number*/

if (no_of_digits < 2){
printf("Usage: please input a number with at least two digits");
exit(1);
}
else{
if (reversed_number == number){
printf("true");
}
else{
printf("false");
}
} /*end of more than 2 digit number check*/
/*end of palindromic_number function*/
}

/*Return 1 if number, else return 0*/
int is_int(char *number_string){
if(number_string > '9' || number_string < '0')
return(0);
for (int counter = 0; number_string[counter]; counter++){
if(number_string > '9' || number_string < '0')
return(0);
}
return(1);

}

/* accept only integers with minimum 2 digits */
int main(int argc, char **argv){
/*Read command line arg*/
if (argc != 2 || is_int(argv) != 1){
printf("Usage: please input a number with at least two digits");
return(1);
}
palindromic_number(atoi(argv));
return(0);
}
``````

Palindromic Number in C was written by:

• smjalageri

If you see anything you'd like to change or update, please consider contributing.

## How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

## How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.