06(Remove single line comment)

#include<stdio.h>
#include<stdlib.h>
void cheakComment(char);
void lineComment();
FILE *f1, *f2;
int main(){

f1=fopen("input.txt","r");
f1=fopen("output.txt","w");
char c;
while((c=fgetc(f1))!=EOF){
    cheakComment(c);

}

fclose(f1);
fclose(f2);

return 0;
}
void cheakComment(char c){
if(c=='/'){
    char d;
    d=fgetc(f1);
    if(d=='/'){
        lineComment();
    }
    else{
        fputc(c,f2);
        fputc(d,f2);
    }
}


else{
    fputc(c,f2);
}
}
void lineComment(){
char e;
while((e=fgetc(f1))!=EOF){
    if(e=='/n'){
        return;
    }
}
}