Remove Duplicate Characters from a String

Code

#include <stdio.h>
#include <stdint.h>

void remove_duplicates(char *str) {
	//Your logic here
    
    for(int i=0; str[i] != '\0';i++)
    {
        for(int j=i+1; str[j] != '\0'; j++)
        {
           if(str[i] == str[j])
           
           for(int k=j; str[k] != '\0';k++ )
           {
             str[k] = str[k+1];
           }   
          
        }
       
    }
    //str[i+1] = '\0';
    }

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;
}

Solving Approach