Write a C/C++ program to identify whether a given line is comment or not.GTU Complier Design 2170701

               Code :

               #include<stdio.h>

               #include<stdlib.h>

               int main()

               {

                    FILE *f1,*f2;

                    f1=fopen("input.c","r");

                    f2=fopen("output.txt","w");

                    char ch=fgetc(f1);

                    int count=1;

                    while(ch!=EOF)

                    {

                                if(ch=='\n')

                                {

                                            count++;

                                }

                                if(ch=='/')

                                {

                                            ch=fgetc(f1);

                                            if(ch=='/')

                                            {

                                                        fprintf(f2,"\nSingle line comment at line %d",count);

                                            }

                                            else if(ch=='*')

                                            {

                                                        fprintf(f2,"\nMultiple line comment start at line %d",count);

                                                        ch=fgetc(f1);

                                                        while(ch!='*')

                                                        {

                                                                    if(ch=='\n')

                                                                    {

                                                                                count++;

                                                                    }

                                                                    ch=fgetc(f1);

                                                        }

                                                        if(ch=='*')

                                                        {

                                                                    ch=fgetc(f1);

                                                                    if(ch=='/')

                                                                    {

                                                                                fprintf(f2," and end at line %d",count);

                                                                    }

                                                        }

                                            }

                                }

                                ch=fgetc(f1);

                    }

                    printf("Check the output in outpt.txt");

                    return 0;

               }