33. Reverse a Number
Foundation1000 ms256 MBSolved by 0%
Read a non-negative integer and print it with its digits reversed.
Leading zeros in the result disappear, reversing 1200 gives 21, not 0021.
Constraints - `0 ≤ n ≤ 1000000000`
Input
A single line containing one integer n.
Output
Print one integer, the number with its digits reversed. Leading zeros in the result disappear.
Input1234
Output4321
Noteis a straightforward reversal
Input1200
Output21
Noteends in zeros, which must not appear as leading zeros in the answer
Hints
Four rungs, in order. The last two open once you have submitted an attempt. A wrong one counts.
Hint 1Where to start
Hint 2The approachOpen hint 1 first. This one carries on from it.
Hint 3PseudocodeOpen hint 2 first. This one carries on from it.
Hint 4Full solutionOpen hint 3 first. This one carries on from it.