#include <stdio.h>

void remove_cmmnt(char *s)  //essentially the two nested if statements are to skip over the text that contains comments
{
    int i,j;
    for(i=j=0; s[j] ;  )    //if s of j has a value the body will execute, then do the test again etc.
    {
        if(s[j]=='/' && s[j+1] && s[j+1]=='/')  //if the current character is '/' and the following character is '/', run the for statement.
            for(j+=2; s[j] && s[j++]!='\n';  )	//the place in the array becomes the character after the the '/', then moves along the array
                ;                               //until it reaches a newline character. j then increments by 1

        else if(s[j]=='/' && s[j+1] && s[j+1]=='*') //if the current character is '/' and the following character is '*', run the for statement.
            for(j+=2; s[j] && s[++j] && (s[j-1]!='*' || s[j]!='/' || !j++); ) //the place in the array becomes the character after the '*'.
                ;                                                             //the place in the array is incremented. Then if the current character
                                                                              //and the previous character are '*/', increment j by 1
        else
            s[i++]=s[j++];  //copies the value of s of j to s of i, then increments i and j
    }
    s[i]='\0';
}

int main()
{
    char s[]="/*123***/Hello // Cross\n World /* **NachLeCoders";
    remove_cmmnt(s);
    puts(s);
    return 0;
}