Write a program that displays a string of characters on the screen but replaces all successive occurrences of the same character with a single character occurrence. For example, the string "aaabcbbccddd" is displayed "abcbcd". 

#include <stdio.h>
#include <conio.h>
#define SIZE 100
 
void main()
{
	char str[SIZE];
	int i, j;
 
	printf("Enter a string : ");
	gets(str);	
 
	j=0;
	i=1;
	while(str[i]!='\0')
	{
		if(str[i]==str[j])
			i++;
		else
			str[++j]=str[i++];
	}
	str[++j]='\0';

	printf("Output: %s\n",str);

	getch();
}