Reverse a number
Write a program to generate the reverse of a given number N. Print the corresponding reverse number.

Note : If a number has trailing zeros, then its reverse will not include them. For e.g., reverse of 10400 will be 401 instead of 00401.

Input format :

Integer N

Output format :

Corresponding reverse number

Constraints:

0

Question

Reverse a number

Write a program to generate the reverse of a given number N. Print the corresponding reverse number.

Note : If a number has trailing zeros, then its reverse will not include them. For e.g., reverse of 10400 will be 401 instead of 00401.

Input format :

Integer N

Output format :

Corresponding reverse number

Constraints:

0 <= N < 10^8

Accepted Answer

To reverse a number following steps should be performed:
Take the number’s modulo by 10
Multiply the reverse number by 10 and add modulo value into the reverse number.
Divide the number by 10.
Repeat above steps until number becomes zero.

Pseudocode :


reverse(n)
{
	rev = 0; // reversed number
	rem; // initialise a variable to store remainder
	while(n>0)
	{
		rem = n%10;
		rev = (rev*10) + rem;
		n = n/10;
	}
	return rev;
}

Accepted Answer

Space Complexity: O(1)Explanation: Time Complexity: O(1)Explanation:

Accepted Answer

Scanner s = new Scanner(System.in);

		int n = s.nextInt();
		int rev =0;
		int rem =0;
		while(n>0){

			rem = n%10;
			 rev = (rev*10) + rem;
			 
			 n=n/10;


		}
		System.out.println(rev);

Write a program to generate the reverse of a given number N. Print the corresponding reverse number.

Note : If a number has trailing zeros, then its reverse will not include them. For e.g., reverse of 10400 will be 401 instead of 00401.

Input format :

Output format :

Constraints:

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