CareerCup

str_rev(char *str)
{
while(*str)
{
str_rev( str+1);
printf("%c",*str);
}
}

static int j=0;
if(*pString+1)
{
ReverseStringRecursive(pString+1);
pString[j++] = *pString;
}

Here's Python:

def reverse(s):
    if len(s) < 2:
        return s
    return ''.join([s[-1], reverse(s[1:-1]), s[0]])

reverse_str(char *s)
{
static int i=0;static int j=0;char ch;
if(*(s+1))
{
j++;s++;
reverse_str(s);
}
if(j>i)
{
ch=s[i];s[i]=s[j];s[j]=ch;
i++;j--;
}
}

// Java version
static String revStr(StringBuffer buf, String data, int length){
if(length == 0){
return buf.append("").toString();
} else {
return revStr(buf.append(data.charAt(length-1)),data, length-1).toString();
}
}

void reverse(char* str, int start, int end){
if(start > end)return;
char tmp = str[start];
str[start] = str[end];
str[end] = tmp;
return reverse(str,start+1, end-1)
}

void strReverse(string::iterator start ,string::iterator end , int count){

if(count == 0 ) return;
else{
char temp;
temp = *end;
*end = *start;
*start = temp;
strReverse(start+1,end-1,count - 1);
}
}
int main( )
{
string str("abcde");

strReverse(str.begin(),str.end() -1 ,str.length()/2);

}

in Java

public static void main(String[] args){
String stringToReverse = "abcdef";
StringBuffer buf = new StringBuffer();
for(int i = stringToReverse.length -1; i>0; i--){
buf.append(stringToReverse.charAt(i));
}
System.out.println(buf.toString());

}

public static void main(String[] args) {
String one="zero";
reverse((char[])one.toCharArray(),one.length());
}
public static void reverse(char[] one, int len) {
if (len == 1) {
System.out.print(one[0]);
} else {
System.out.print(one[len - 1]);
reverse(one, len - 1);
}
}

public static void main(String[] args) {
String one="zero";
reverse((char[])one.toCharArray(),one.length());
}
public static void reverse(char[] one, int len) {
if (len == 1) {
System.out.print(one[0]);
} else {
System.out.print(one[len - 1]);
reverse(one, len - 1);
}
}

in C#

private void Reverse(String myString)
    {
        String next = myString.Substring(myString.Length - 1, 1);

        Page.Response.Write(next);

        if (myString.Length > 1)
            Reverse(myString.Substring(0, myString.Length - 1));

}