#include <iostream>
using namespace std;

char deleteRepeats(char letters[],int& size);

void main()
	{
		int i = 0;
		int size = 10;
		char letters[10];
		letters[0]='a';
		letters[1]='a';
		letters[2]='b';
		letters[3]='x';
		letters[4]='b';
		letters[5]='c';
		size = deleteRepeats(letters, size);
		
			for (i = 0; i < 10;i++)
				{
					cout<<letters[i]<<endl;
				}

	}
		
char deleteRepeats(char letters[],int& size)
	
	{
		int k = 1;
		int i = 0;
	for (i = 0; i < 10; i++)
	for (k = 1; k < 10; k++)
	{
		if (letters[k] == letters[i])
		{
		letters[k]= ' ' ;
		}
	}
	return size;
	}