wd[x].length returning 1, but it is 6!

Code:

#include <iostream>
using namespace std;

int main ()
    {
    string wd[50];
    cout<<"Trivia will begin"<<"\n"<<"\n";
    wd[1] = "hello";
    wd[2] = "need";
    wd[3] = "help";
    wd[4] = "yell";
    wd[5] = "box";
    string subs[50];
    int low_index = 1;
    int high_index = 5;
    int lsub_index = low_index;
    int hsub_index = high_index;
    bool subs_has_set[50];
    int x; int i;
    bool cont;
    string players_word;
    string scrambledword;
    //makes a random number, to select the word we will use
    srand((unsigned)time(0));   
    x = 1; //(rand()%high_index)+low_index;
    //gets the length of the string for the while loop
    string::size_type word_length = wd[x].length(); // is 1, should be 6
    
    
    //begins to set subs[] to each letter of wd
    cout<<"wd[x] == "<<wd[x]<<","<<"\n"<<"Length = "<<x<<"\n"<<"\n";
    while (low_index < word_length)
        {
        subs[low_index] = wd[x].substr(low_index, low_index-1);
        cout<<"subs"<<low_index<<" == "<<subs[low_index]<<"\n"<<"\n";
        low_index++;
        }
    //loops so all characters are used and not overlap
    while (cont == true)
        {
        i = (rand()%word_length)+low_index;
        if (subs_has_set[i] == false)
            {
            scrambledword = scrambledword + subs[i]; 
            subs_has_set[i] == true;          
            }
        string::size_type new_word_length = scrambledword.length();
        if (new_word_length == word_length)
            {
            cont == false; 
            } 
        }
    cout<<"Word to unscramble is "<<scrambledword<<", Good luck "<<"\n";
    getline(cin, players_word);
    cin.get();
    }

ok, i've set x = 1, instead of randomating it... so the word is "Hello", Obviously 6 letters long...

BUT its returning 1, and I need to fix it badly

Code:

string wd[50];
wd[1] = "hello";
	
string::size_type word_length = wd[1].length();
cout<<word_length<<endl; //5

By the way, arrays start at index position 0, so you should be writing:

wd[0] = "hello";

thanks, obvious mistake, 5 letters O_O not six! stupid! lol