Remove Duplicate Characters from a String

Code

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


void remove_duplicates(char *str) {
	//Your logic here
    int n = strlen(str);
    int index = 0;
    for(int i = 0; i < n; i++)
    {
        int j;
        for( j = 0; j < i; j++)
        {
            
            if(str[i] == str[j])
            {
                break;
            }
        }
        if(i == j)
        {
            str[index++] = str[i];
        }
    }
    str[index] = '\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

 

 

 

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Input

programming

Expected Output

progamin