Remove Duplicate Characters from a String

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

void remove_duplicates(char *str) {
	bool status[260];
    for(int i=0;i<260;i++){
        status[i] = true;
    }
    int i=0,k=0;
    while(str[i] != '\0'){
        if(status[str[i]]) {
            str[k] = str[i];
            k++;
            status[str[i]] = false;
        }
        i++;
    }
    str[k] = '\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;
}