Remove Duplicate Characters from a String

Code

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

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

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

 

 

 

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Input

programming

Expected Output

progamin