#include <stdio.h>
#include <stdint.h>
void remove_duplicates(char *a)
{
int i;
int j;
while(a[i])
{
j=i+1;
while(a[j])
{
if(a[i]==a[j])
{
int k=j+1;
while(a[k])
{
a[k-1]=a[k];
k++;
}
a[k-1]='\0';
}
j++;
}
i++;
}
}
int main() {
char str[101];
fgets(str, sizeof(str), stdin);
// Remove newline
uint8_t i = 0;
while (str[i]) {
if (str[i] == '\n') {
str[i] = '\0';
break;
}
i++;
}
remove_duplicates(str);
printf("%s", str);
return 0;
}
Input
programming
Expected Output
progamin