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Remove Duplicate Characters from a String

Code

#include <stdio.h>
#include <stdint.h>
#include<string.h>
void remove_duplicates(char *str) 
{
    int len = strlen(str);
	//Your logic here
    int i=0,j=0;
   for( i=0;i<len;i++)
   {
    for(j=i+1;j<len;)
    {
        if(str[i]==str[j])
        {
           for(int k=j;k<len;k++)
           {
            str[k]=str[k+1];
           }
           len--;
        }
        j++;
    }
   }
str[i]='\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