Here you will get program to reverse number in C++.

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#include<iostream> using namespace std; int main() { long n,rev=0,d; cout<<"Enter any number:"; cin>>n; while(n!=0) { d=n%10; rev=(rev*10)+d; n=n/10; } cout<<"The reversed number is "<<rev; return 0; } |

**Output**

*Enter any number:12674*

*The reversed number is 47621*

what the statement d=n%10 actually means

% is used to get remainder of a number by dividing it by other number. And if we do modulus of number by 10 then the last digit of number is remainder. Means 123%10=3 or 12%10=2. I hope this will make you clear.

I used this program but it is not working for numbers starting with zero.

For example,

001 should give me 100; but it gives me 1

001 is considered as 1. This program is for number reverse not string reverse.

what the statement rev=(rev*10)+d

what the value of rev in this statement

this was really helpful… thanku.. but I couldn’t find the solution to write a program to enter a number and print the sum of digits.