Remove Duplicate Characters from a String

Code

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

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

Solving Approach