CodeNeverReaches

#include <iostream>
#include <string>
#include <time.h>

using namespace std;
const int MAX_SIZE = 100;
string words[MAX_SIZE];
int counter = 0;

void print_permutations(string s)
{
    bool exists = true;
    int i=0;
    int j=0;
    srand(time(NULL));

    for(int k = 0; k < s.length()/2; ++k)
    {
        i = rand()%s.length();//-1;
        j = rand()%s.length();//-1
        /*if (i < 0)
            i = 0;
        if (j < 0)
            j = 0;
        if (i == j)
             i++;
        if (i > s.length()-1)
            i = 0;*/
        if(i != j){
            s[i] = s[i] ^ s[j];
            s[j] = s[i] ^ s[j];
            s[i] = s[i] ^ s[j];
        }
    }

    if(exists == true)
    {
        for(int m = 0; m < MAX_SIZE; m++)
        {
            if(words[m] == s)
            {
                cout << "Permutation exists" << endl;
            }
            break;
        }
    }else
        {
            words[counter] = s;
            cout << "permutation: " << s << endl;;
        }
}


int main()
{
    string word;
    do{
        cout << "\nPlease enter a word" << endl << "Original Word: ";
        cin >> word;
        print_permutations(word);
        counter++;
    }while(word != "1");
}