CareerCup

1) First reverse the entire string ( it gives like "dlrow olleh")
2) and then call/reverse word from first character to till space encounters.
3) It gives desired output.

#include<stdio.h>

void reverse(char *des,char *str)
{
char temp;
while(des<str)
{
temp=*des;
*des++=*str;
*str--=temp;
}
}
int main()
{
char str[]="Hello World";
printf("Original String is :: %s \n ",str);
char *temp=str;
char *dest=str;
while(*temp)
{
temp++;
if(*temp=='\0')
{
reverse(dest,temp-1);
}
//Finally Reversed String is junaT si eman yM
else if(*temp==' ')
{
reverse(dest,temp-1);

dest=temp+1;
}
//Finally Reversed String is yM eman si junaT
}
reverse(str,temp-1);
//Finally Reversed String is Tanuj is name My
printf("Finally Reversed String is :: %s",str);
//printf("Helo......");
getchar();
return 0;
}

#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

int main() {

    string s("Hello World sdf4 45234");
    reverse(s.begin(), s.end());

    int start = 0;

    while(true) {
        int index = s.find(" ", start);
        if (index == s.npos) {
            reverse(s.begin() + start, s.end());
            break;
        }
        reverse(s.begin() + start, s.begin() + index);
        start = index + 1;
    }
    cout << s << endl;

    return 0;
}

public static void reverse(String input)
{
		
		String[] words = input.split(" ");
		int length = words.length;
		StringBuilder finalString = new StringBuilder(input.length());
		for(int i=length-1;i >= 0;i--)
		{
			finalString.append(words[i]);
			finalString.append(" ");
		}
		
		System.out.println("Result String: "+ finalString.toString());
		
	}

Input : Hello World
Output : World Hello

#include<iostream>
#include<string>
using namespace std;
void reverse(string &s)
{
	int l=s.length();
	char ch;
	for(int i=0;i<l/2;i++)
	{
		ch=s[i];
		s[i]=s[l-i-1];
		s[l-1-i]=ch;
	}
}

void str_reverse(string &s)
{
	int i=0,m,l=s.length(),j;
	char ch;
	reverse(s);
	while(i<=l)
	{
		j=i;
		while(s[i]!=' '&&s[i]!='\0')
		{
			i++;
		}
		m=(i-j)/2;
		for(int k=0;k<m;k++)
		{
			ch=s[j+k];
			s[j+k]=s[i-1-k];
			s[i-1-k]=ch;
		}
		i++;
	}
}

int main()
{
	string s;
	getline(cin,s);
    str_reverse(s);  
//reverse(s);
	cout<<s;
	return 0;
}

public class StringReverseExample {

    public static void main(String args[]) throws FileNotFoundException, IOException {

        //original string
        String str = "Sony is going to introduce Internet TV soon";
        System.out.println("Original String: " + str);

        //recursive method to reverse String in Java
        String reverseStr = reverseRecursively(str);
        System.out.println("Reverse String in Java using Recursion: " + reverseStr);

    }

    public static String reverseRecursively(String str) {

        //base case to handle one char string and empty string
        if (str.length() <= 1) {
            return str;
        }

        return reverseRecursively(str.substring(1)) + str.charAt(0);

    }
}

public class RevString {
    
    public static void main(String[] arg){
        
        String str="Muhammad Tariq Akram";
        String[] strArray = str.split(" ");
        int length=strArray.length;
        
        for(int i=length-1; i>-1; i--){
            System.out.print(strArray[i] + " " );
        }
    }
    
}

#include<iostream>
#include<string.h>
using namespace std;
int main()
{
char c[20]="Hello World";

int l;
l=strlen(c);
char arr[l];
arr[0]=' ';
int i=1;
while(c[i-1]!=32)
{
arr[i]=c[i-1];
i++;

}
arr[i]='\0';
char arr1[l-i+1];
arr1[l]='\0';
while(c[l]!=32)
{
arr1[l-1]=c[l-1];
l--;
}
char *str=strcat(arr1,arr);
cout<<str;
}

public static void ReverseWords(String input)
    {
       String words[] = input.split(" ");
       
       int k = words.length-1;
       
       StringBuilder FinalString = new StringBuilder(k);
       
       for(int j=k; j>=0; j--)
       {
           FinalString.append(words[j]).append(" ");
       }
        System.out.println(FinalString);
    }

#include"stdafx.h"
#include"iostream"
#include"string"

using namespace std;
#define P system("pause")

int main()
{
string s = "Hello World";

string s1, s2;
s1.assign(&s[0], &s[5]);
s2.assign(&s[6], &s[11]);

string rets = strcat( strrev(const_cast<char*>(s1.c_str())), " ");
strcat(const_cast<char*>(rets.c_str()), strrev(const_cast<char*>(s2.c_str())));
strrev(const_cast<char*>(rets.c_str()));
cout<<rets.c_str()<<endl;
P;
return 0;
}

///
using System;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
reverseString("Hello how are you?");

Console.ReadLine();
}

private static void reverseString(string p)
{
int space = 0;
bool multiWord = false;
while (space != -1)
{
space = p.LastIndexOf(' ');
if (space != -1)
{
string wor = p.Substring(p.LastIndexOf(' '));
Console.Write(wor);
p = p.Substring(0, p.LastIndexOf(' '));
multiWord = true;
}
else
{
if (!multiWord)
{
Console.Write(p);
}
else
{
Console.Write(" " + p);

}
}
}
}
}
}
\\\

a = "My world is you"
print ' '.join(a.split()[::-1])
print a[::-1]

result:
you is world My
uoy si dlrow yM

public void reversesen(){
String[] word = s.split(" ");
for(int i=word.length-1;i>=0;i--){
result=result+word[i]+" ";
}
}

def rev(str):
	s = str.split(" ")
	for i in range(len(s)-1,-1,-1):
		print(s[i],end=" ")


rev("Hello World")

import java.io.DataInputStream;
import java.io.IOException;
public class stringreversal 
{
    public static void main(String args[])throws IOException
    {
        
        System.out.println("Enter the string to be reversed??");
        DataInputStream in = new DataInputStream(System.in);
        String abc= in.readLine();
        String arr[]=abc.split(" ");
        String ab;
        for(int i=0,j=arr.length-1;i<=j;i++,j--)
        {
            ab = arr[i];
            arr[i]=arr[j];
            arr[j]=ab;
        }
        for(int i=0;i<arr.length;i++)
        System.out.print(arr[i]+" ");
    }
}