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Problem with my function [can´t find the solution]

FutureWarrior90 (3)
Hello Iam writing a program for replace words in a sentence.
Nothing special, because Iam a newbie ^.^
For example:
"Whats your name?"
Replacefunction();
"Whats your age?".

I guess I´ve done everything well! I researched the internet but I can´t find my mistake? Why there is always an Error?

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//main.cpp
#include <iostream>
#include <string>
#include <cmath>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include "textone.h"
using namespace std;

int main ()
{
  TEXT_ONE();
  system("pause");
  getchar();
  return 0;
}
//-----------------------------------------------------
//TEXTONE.CPP

#include "textone.h"
#include <iostream>
#include <string>
#include <cmath>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>


void TEXT_ONE()
{
	const int MAXITEMS = 5;
	
    string lastItem;
	string inventory[MAXITEMS] = {"The ", "distortion ", "is ", "totally ", "solid"};
	string replaceItem;
	string addItem;
	
	cerr << "We start with\n" << endl;

	for (int i = 0; i < MAXITEMS; i++)
	{                 
		lastItem = inventory[i];
		cerr << inventory[i] ;                
	}

    cout << endl; 
    cout << endl;
	
//accomplished, imaginative, creative, solid, 
	
srand ( time(NULL) );
int random_number = 0;
random_number = rand() % 4 + 0;

switch (random_number) 
{
  case 1:
       replaceItem = "creative";
       break;
  case 2:
       replaceItem = "imaginative";
       break;
  case 3:
       replaceItem = "accomplished";
       break;
  case 4:
       replaceItem = "solid";
       break;
  default:
    cout << "ERROR" << endl;
  }

random_number = 0;   
    
    inventory[4] = replaceItem;
	cerr << endl << endl;
	

	for (int i = 0; i < MAXITEMS; i++)
	{
		lastItem = inventory[i];
		cerr << inventory[i] << endl << endl;                  
	}
}

//-------------------------------------------------------------------------
//TEXTONE.H

#ifndef TEXTONE_H
#define TEXTONE_H

void TEXT_ONE();

#endif

Thanks for answering me 
and reading my crappy english.
Hippogriff (727)
Why there is always an Error?


Showing the errors it gives would make it easier to find the problem.
Peter87 (11234)
random_number = rand() % 4 + 0;
random_number gets a value in the range 0-3 but the switch handles numbers 1-4.
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