Code for rainfall

/*
 * GUI_Project.cpp
 *
 *  Created on: 20-Nov-2016
 *      Author: SINAN NIZAR
 */
#include<iostream>
#include <fstream>
#include <conio.h>
#include<math.h>
#include<windows.h>
using namespace std;
int main()
 {
 //char enter;
 cout<<"GRD Extractor\n";
 cout<<"Follow the steps and press the Enter key after each step\n";
 cout<<"\nSTEP 1:\n";
 cout<<"Create a new folder in your C drive and name it GRD \n";
 cin.get();
 cout<<"\nSTEP 2:\n";
 cout<<"Copy all the grid files to be extracted to this folder \n";
 cin.get();
 cout<<"\nSTEP 3:\n";
 cout<<"Make sure that the grid files are named as ind****_rfp25.grd, \nwhere **** is the corresponding year \n";
 cout<<"\nExample ind2013_rfp25.grd \n";
 cin.get();
 cout<<"\nSTEP 4:\n";
 cout<<"Create a text file named lat.txt in this directry\n";
 cout<<"This text file should contain the desired latitudes for your location\n";
 cout<<"\nFor reference see Instructions.pdf\n";
 cout<<"\nSimilarly create lon.txt with the corresponding longitudes\n";
 cin.get();

 float start,end;
 float lat[20000],lon[20000];
int nu,x,y;
x=1;
y=1;
 cout<<"Enter the start year \n";
 cin>>start;
 cout<<"Enter the end year\n";
 cin>>end;
 cout<<"Enter the number of points\n";
 cin>>nu;
 cout<<"Press Enter to continue\n";
 cin.get();
 cin.get();
 //clrscr();
 float rf[135][129],rainfall;
     float lo[135], la[129] ;
  int i, j, year, year1, month, date, nd;
  FILE *fptr1,*fptr2;
  int nd1[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31} ;
  int nd2[13] = {0,31,29,31,30,31,30,31,31,30,31,30,31} ;

   char address[100] = {'\0'};
   char address1[100] = {'\0'};
   char address2[100] = {'\0'};
   char address3[100] = {'\0'};
   float p,temp;
   sprintf(address2,"C:\\GRD\\lat.txt",year);
   sprintf(address3,"C:\\GRD\\lon.txt",year);
   ifstream openfile(address2);
                          while(!openfile.eof())
                          {
                          openfile>>temp;
                          lat[x]=temp;
                          x++;
                          }
                          ifstream openfile1(address3);
                                                    while(!openfile1.eof())
                                                    {
                                                    openfile1>>temp;
                                                    lon[y]=temp;
                                                    y++;
                                                    }
   for(year=start;year<=end;year++)
   {
   p = (((year-start)/(end+1-start))*100);
   cout<<"\nTotal Progress ";
   cout<<p;
   cout<<"%\n";
   cout<<"Extracting year ";
   cout<<year<<"\n";
   sprintf(address,"C:\\GRD\\ind%ld_rfp25.grd",year);
   sprintf(address1,"C:\\GRD\\rfp_%ld.TXT",year);
   for(j=0 ; j < 135 ; j++) lo[j] = 66.5 + j * 0.25 ;
   for(j=0 ; j < 129 ; j++) la[j] =  6.5 + j * 0.25 ;
   fptr1 = fopen(address,"rb");
   fptr2 = fopen(address1,"w");

   year1 = year / 4 ;
       year1 = year1 * 4 ;

       for(month=1 ; month < 13 ; month++)
       {
        if(month==2)
                  cout<<"[=>         ] 10%\n";
        if(month==4)
                  cout<<"[==>        ] 20%\n";
        if(month==5)
                  cout<<"[===>       ] 30%\n";
        if(month==6)
                  cout<<"[====>      ] 40%\n";
        if(month==7)
                  cout<<"[=====>     ] 50%\n";
        if(month==8)
                  cout<<"[======>    ] 60%\n";
        if(month==9)
                  cout<<"[=======>   ] 70%\n";
        if(month==11)
                  cout<<"[========>  ] 80%\n";
        if(month==12)
                  cout<<"[=========> ] 90%\n";
       nd = nd1[month] ;
           if(year == year1)nd = nd2[month] ;
           for(date=1 ; date <= nd ; date++)
     {
           //fprintf(fptr2,"%7.1f",date );
           //fprintf(fptr2,"%7.1f",month );
           //fprintf(fptr2,"%7.1f\t",year );
           for(i=0 ; i < 129 ; i++)
            {
                   for(j=0 ; j < 135 ; j++)
                  {   fread(&rainfall,sizeof(rainfall),1,fptr1);
                      rf[j][i]  = rainfall ;
                      for(x=1;x<=nu;x++)
                      {
                       if((lo[j]==lon[x])&&(la[i]==lat[x]))
                       fprintf(fptr2,"%7.1f\t",rf[j][i]);
                       }
                       }
         }
           fprintf(fptr2,"\n");
               }

           }

        }
        fclose(fptr1);
        fclose(fptr2);
        cout<<"Job completed\n";
        cout<<"\n           Coded by :\n";
        cout<<"\n";
        cout<<"             ---------------------\n";
        cout<<"             |   SINAN NIZAR     |\n";
        cout<<"             |  NITK Surathkal   |\n";
        cout<<"             ---------------------";
        getch();
        }