#include<stdio.h>
#include<graphics.h> 
#include<string.h> 
#include<math.h>
#include<conio.h>
int const monthcount=12,dataoffset=18;
 
struct indata
{
 float realarray[ 12]; 
 float array[ 12];
};
 
char getlabel[3];
indata data;
int monthplace[ 12];
float interval,chartbottom,radius; 
 
struct wcp
{
float x;
float y;
} coord[monthcount]; 
 
wcp center; 
 
int round(float a)
{
 int b;
 b=a; 
 if(a-b>0.5) 
  return ++b; 
 else
  return b;
}
 
void polyline(int x, wcp *y)
{
 for(int i=0;i<x-1 ;i++)
 line(y[i].x,y[i].y,y[i+1].x,y[i+1].y);
}
 
void getlab(int x)
{
 switch(x)
 {
  case 0:
  {
   strcpy(getlabel,"JAN"); 
   break;
  }
  case 1: 
  {
   strcpy(getlabel ,"FEB");
   break;
  }
  case 2:
  {  
   strcpy(getlabel," MAR"); 
   break;
  }
  case 3:
  {
   strcpy(getlabel,"APR"); 
   break;
  }
  case 4:
  { 
   strcpy(getlabel,"MAY"); 
   break;
  }
  case 5:
  {
   strcpy(getlabel,"JUN"); 
   break;
  }
  case 6:
  {
   strcpy(getlabel,"JUL");
   break;
  }
  case 7:
  {
   strcpy(getlabel,"AUG" ); 
   break;
  }
  case 8:
  { 
   strcpy(getlabel,"SEP"); 
   break;
  }
  case 9:
  {
   strcpy(getlabel,"OCT"); 
   break;
  }
  case 10:
  { 
   strcpy(getlabel,"NOV"); 
   break;
  }
  case 11:
  {
   strcpy(getlabel,"DEC"); 
   break;
  }
 }
}
 
void getdata()
{
 float t1=0.00,t2; 
 for(int t=0;t<12;t++)
 {
 getlab(t);
 printf("ENTER THE DATA FOR THE MONTH OF %s: ",getlabel);
 scanf("%f",&data.realarray[t]);
 if(data.realarray[t]>t1 )
 {
  t1=data.realarray[t];
 }
 }
 for(t=0;t<12;t++)
 {
  t2=data.realarray[t]/t1;
  data.array[t]=t2*400;
 }
}
 
void puttext(wcp textp)
{
 settextstyle(1,HORIZ_DIR,1);
 outtextxy(textp.x,textp.y,getlabel);
}
 
void drawlabels()
{
 wcp textposition;
 textposition.y=chartbottom;
 int zz=25;
 for(int az=0;az<12;az++)
 {
  textposition.x=zz;
  zz+=50;
  getlab(az);
  puttext(textposition);
 }
}
 
char valuep[5];
 
void findvaluep(int x)
{
 int y=x,ttt;
 char tg[5];
 strcpy(tg,"");
 do
 {
  ttt=y%10;
  switch(ttt)
  {
   case 0:
   {
    strcat(tg,"0");
    break;
   }
   case 1:
   {
    strcat(tg,"1");
    break;
   }
   case 2:
   {
    strcat(tg,"2");
    break;
   }
   case 3:
   {
    strcat(tg,"3");
    break;
   }
   case 4:
   {
    strcat(tg,"4");
    break;
   }
   case 5:
   {
    strcat(tg,"5");
    break;
   }
   case 6:
   {
    strcat(tg,"6");
    break;
   }
   case 7:
   {
    strcat(tg,"7");
    break;
   }
   case 8:
   {
    strcat(tg,"8");
    break;
   }
   case 9:
   {
    strcat(tg,"9");
    break;
   }
  }
  y/=10;
 } while(y>0);
 strcpy(valuep,"");
 for(y=0;y<strlen(tg);y++)
 {
  valuep[y]=tg[strlen(tg)-y-1];
 }
 valuep[y]=NULL;
}
 
 
void linechart()
{
 drawlabels();
 settextstyle(DEFAULT_FONT,HORIZ_DIR,1);
 for(int t=0;t<monthcount;t++)
 {
  coord[t].x=monthplace[t];
  coord[t].y=450-data.array[t]-dataoffset;
  findvaluep(data.realarray[t]);
  outtextxy(coord[t].x,coord[t].y-10,valuep);
 }
 polyline(monthcount,coord);
}
 
void main()
{
 int gdriver=DETECT,gmode;
 initgraph(&gdriver,&gmode,"");
 getdata();
 cleardevice();
 chartbottom=450.0;
 interval=50.0;
 monthplace[0]=25;
 for(int z=1;z<monthcount;z++)
 monthplace[z]=monthplace[z-1 ]+interval;
 linechart();
 getch();
 cleardevice();
 closegraph();
}