The tests come out wrong although the outcomes are the same

Question

Extra-Terrestrials
+10 XP

You meet a group of aliens, and their language is just like English except that they say every word backwards.
How will you learn to communicate with them?

Task:
Take a word in English that you would like to say, and turn it into language that these aliens will understand.

Input Format:
A string of a word in English.

Output Format:
A string of the reversed word that represents the original word translated into alien language.

Sample Input:
howdy

Sample Output:
ydwoh

#include <iostream>
using namespace std;

int main() {
string word, b;
cin >> word;
for(int l =word.length(); l != -1;l--)
{b += word[l];}
cout << b;
return 0;
}

Answer 1

CapVag in for loop int l=word.length() refers to null character . Change this to int l=word.length()-1

Answer 2

Try this one:

import java.util.*;
class ReverseString
{
public static void main(String args[])
{
String original, reverse = "";
Scanner in = new Scanner(System.in);

// System.out.println("garbage");
original = in.nextLine();

int length = original.length();

for (int i = length - 1 ; i >= 0 ; i--)
reverse = reverse + original.charAt(i);

System.out.println("" + reverse);
}
}

Answer 3

Ty both. They worked like a charm. :)