Created with over a decade of experience and thousands of feedback. ... #include <stdio.h> int main() { int n, reverse = 0, remainder, original; printf("Enter an integer: "); scanf("%d", &n); original = n; while (n != 0) { remainder = n % 10; reverse = reverse * 10 + remainder; n /= 10; } if (original % 10 == 0) { printf("Reversed number = %d", reverse); while (original % 10 == 0) { printf("0"); original /= 10; } } else { printf("Reversed number = %d", reverse); } return 0; }

May 28, 2025 - The simplest method to reverse a string is by extracting its digits one by one using (%) modulo and (/) division operator and form the number by rearrange them in the reverse. ... #include <stdio.h> // Iterative function to // reverse digits ...

April 21, 2026 - Explore 6 different ways to reverse a number in C language with detailed explanations and with code examples, Read now!

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November 16, 2023 - In this case, as we are using for loop, it is essential to know the size of the number beforehand. Therefore we should make use of the log10 function to find the size of the number. Methods used: long reverse(long) – This function will reverse ...

September 9, 2025 - Understand the algorithm of a C program to reverse a number. Learn how to reverse a number in C using different methods and loops with example code.📖 Read on!

To reverse or invert large numbers use long data type or long long data type if your compiler supports it, if you still have large numbers then use strings or other data structure. ... #include<stdio.h> int main() { int n, reverse = 0; printf("Enter a number to reverse\n"); scanf("%d",&n); ...

September 28, 2022 - This C program accepts an integer and reverse it. ... #include<stdio.h> //main program int main () { //variables initialization int num, reverse = 0, rem; num=1234; printf("The number is: %d\n",num); //loop to find reverse number while(num != 0) { rem = num % 10; reverse = reverse * 10 + rem; num /= 10; }; //output printf("Reverse: %d\n",reverse); return 0; } // Time complexity O(N) // Space complexity : O(1)

March 17, 2023 - To reverse a number in C, we used modulus (%). The logic for the reverse number is as follows: First, initialize a reverse number to 0. Then, multiply reverse by 10. Divide given number by 10 and find modulus.

March 9, 2024 - In C, we can leverage recursion to reverse a number with just a few lines of code. The key is to continuously divide the number by 10, extract the last digit using the modulo operator, and accumulate it into the result.

February 26, 2024 - In programming, we can display the reversed number by printing all its digits from the rightmost digit to the left-most integer. But, to retain it as a number, we apply some math to store the value at each iteration. Initialize rev_num to 0 // variable to hold the reverse of a number in c

March 26, 2026 - ... #include <stdio.h> int main() ... last digit from the original number } // Output the reversed number printf("Reversed Number: %d\n", reversed); return 0; }...

December 12, 2024 - Use a loop to reverse the digits of the number. Output the reversed number. ... #include <stdio.h> int main() { int num, reversed = 0; printf("Enter an integer: "); scanf("%d", &num); while(num != 0) { int digit = num % 10; reversed = reversed ...

October 29, 2024 - Initialize variable reverseNum with 0, as it will store the reversed number. Next, use a loop, say a while loop with a condition that num is greater than 0. ... Multiply reverseNum by 10 to shift the digits one place to the left.

For example, suppose when we calculate the sum of the first 25 numbers. That means we start adding the numbers from 1 to the given number... ... There are different kinds of the operators, such as arithmetic, relational, bitwise, assignment, etc., in the C programming language.

C program to reverse a number and to print it on the screen. For example, if the input is 123, the output will be 321. In the program, we use the modulus operator (%) to obtain digits of the number.

After all the iterations, the final reverse number will be saved in rev. ... //program name: Reverse_of_Number.c #include<stdio.h> int main() { int num,r,rev=0; printf("Enter a number to find reverse: "); scanf("%d",&num); while(num) { r=num; rev=rev*10+r; num=num/10; } printf("Reversed of given number: %d",rev); return 0; }

To reverse or invert large numbers use long data type or long long data type if your compiler supports it, if you still have large numbers then use strings or other data structure. ... #include<stdio.h> int main() { int n, reverse = 0; printf("Enter a number to reverse\n"); scanf("%d",&n); ...

In the next iteration the second last digit becomes the second digit of revNum (because of this logic revNum=revNum*10+rem). This process keeps going on until all digits are removed from original number in reverse order and appended to the variable revNum. At the end of the recursion, this revNum variable contains the reverse of the original number.