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Remove Duplicate Characters from a String

Code

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

void remove_duplicates(char *str) {
    char strcp[100];
    int count=0,f=0,n=0;
    while(1){
        if(*(str+n)=='\0'){
            *(strcp+count)=*(str+n);
            for(int i=0;i<=count;i++){
                *(str+i)=strcp[i];
            }
            break;
        }
        else{
            f=0;
            for(int i=0;i<count;i++){
                if(*(str+n)==*(strcp+i)){
                    f=1;
                    break;
                }
            }
            if(f==0){
                *(strcp+count)=*(str+n);
                count++;
            }
        }
        n++;
    }
	//Your logic here
    }

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