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- #include <iostream>
- #include <cmath>
- auto reverseNumber(int num) -> int
- {
- /*! Find total digits in num */
- int digit = static_cast<int>(log10(num));
- /*! Basic Condition */
- if(num == 0)
- return 0;
- return ((num % 10 * pow(10, digit)) + reverseNumber(num / 10));
- }
- int main()
- {
- std::cout << reverseNumber(123);
- }
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