c program for calender

#include<stdio.h>#include<conio.h>#include<stdlib.h>#include<graphics.h>void main(){int yr,month,date,days,m,daysfab,a,n;int total,week,c,d,e;int p,q;char date1[7][3]={"1","8","15","22","29"};char date2[7][3]={"2","9","16","23","30"};char date3[7][3]={"3","10","17","24","31"};char date4[7][3]={"4","11","18","25"};char date5[7][3]={"5","12","19","26"} ;char date6[7][3]={"6","13","20","27"};char date7[7][3]={"7","14","21","28"};void drawcal();int gd=DETECT,gm;initgraph(&gd,&gm,"c:\tc\bgi");setbkcolor(0);printf("Enter the Yr ------------:") ;scanf("%d",&yr);printf("Enter the Month [1-12] ----:") ;scanf("%d",&month);n=month;if(month>12){printf("!!!!! Invalid input");getch();exit(1);}
a=yr%400;c=(a%100)-1;d=c/4;e= (a/100)*5+(d*2)+(c-d); //total//m=(n-1);if(m==1)days=31;if (m==2);{ if(yr%4==0) daysfab=29;else daysfab=28;}days=31+daysfab;if(m==3)days=31+31+daysfab;if(m==4)days =92+daysfab;if(m==5)days=123+daysfab;if(m==6)days=153+daysfab;if(m==7)days=184+daysfab;if(m==8)days=215+daysfab;if(m==9)days=245+daysfab;if(m==10)days=276+daysfab;if(m==11)days=306+daysfab; if(m==0) days=0;total=days+e+1;week=total%7;

drawcal();for(p=0,q=0;p<=260,q<=5;p+=50,q++){setcolor(11);if(week==0){outtextxy(110+p,60,date1[q]);outtextxy(110+p,110,date2[q]);outtextxy(110+p,160,date3[q]);outtextxy(110+p,210,date4[q]);outtextxy(110+p,260,date5[q]);outtextxy(110+p,310,date6[q]);outtextxy(110+p,360,date7[q]);}if(week==1){outtextxy(110+p,110,date1[q]);outtextxy(110+p,160,date2[q]);outtextxy(110+p,210,date3[q]);outtextxy(110+p,260,date4[q]);outtextxy(110+p,310,date5[q]);outtextxy(110+p,360,date6[q]);outtextxy(160+p,60,date7[q]);}if(week==2){outtextxy(110+p,160,date1[q]);outtextxy(110+p,210,date2[q]);outtextxy(110+p,260,date3[q]);outtextxy(110+p,310,date4[q]);outtextxy(110+p,360,date5[q]);outtextxy(160+p,60,date6[q]);outtextxy(160+p,110,date7[q]);}if(week==3){outtextxy(110+p,210,date1[q]);outtextxy(110+p,260,date2[q]);outtextxy(110+p,310,date3[q]);outtextxy(110+p,360,date4[q]);outtextxy(160+p,60,date5[q]);outtextxy(160+p,110,date6[q]);outtextxy(160+p,160,date7[q]);}if(week==4){outtextxy(110+p,260,date1[q]);outtextxy(110+p,310,date2[q]);outtextxy(110+p,360,date3[q]);outtextxy(160+p,60,date4[q]);outtextxy(160+p,110,date5[q]);outtextxy(160+p,160,date6[q]);outtextxy(160+p,210,date7[q]);}if(week==5){outtextxy(110+p,310,date1[q]);outtextxy(110+p,360,date2[q]);outtextxy(160+p,60,date3[q]);outtextxy(160+p,110,date4[q]);outtextxy(160+p,160,date5[q]);outtextxy(160+p,210,date6[q]);outtextxy(160+p,260,date7[q]);}if(week==6)
{outtextxy(110+p,360,date1[q]);outtextxy(160+p,60,date2[q]);outtextxy(160+p,110,date3[q]);outtextxy(160+p,160,date4[q]);outtextxy(160+p,210,date5[q]);outtextxy(160+p,260,date6[q]);outtextxy(160+p,310,date7[q]);}}setfillstyle(1,0);if((n==4||n==6||n==9||n==11) && week==0)floodfill(310,190,10);if((n==4||n==6||n==9||n==11) && week==1)floodfill(310,240,10);if((n==4||n==6||n==9||n==11) && week==2)floodfill(310,290,10);if((n==4||n==6||n==9||n==11) && week==3)floodfill(310,340,10);if((n==4||n==6||n==9||n==11) && week==4)floodfill(310,390,10);if((n==4||n==6||n==9||n==11) && week==5)floodfill(360,60,10);if((n==4||n==6||n==9||n==11) && week==6)floodfill(360,110,10);if(n==2 &&yr%4!=0 && week==0){floodfill(310,60,10);floodfill(310,110,10);floodfill(310,160,10);}if(n==2 && yr%4!=0 && week==1){floodfill(310,110,10);floodfill(310,160,10);floodfill(310,210,10);}if(n==2 && yr%4!=0 && week==2){floodfill(310,160,10);floodfill(310,210,10);floodfill(310,260,10);}if(n==2 &&yr%4!=0&&week==3){floodfill(310,210,10);floodfill(310,260,10);floodfill(310,310,10);}if(n==2&&yr%4!=0&&week==4){floodfill(310,260,10);floodfill(310,310,10);floodfill(310,360,10);}if(n==2&&yr%4!=0&&week==5){floodfill(310,310,10);floodfill(310,360,10);floodfill(360,60,10);}if(n==2&&yr%4!=0&&week==6){floodfill(310,360,10);floodfill(360,60,10);floodfill(360,110,10);}if(n==2 &&yr%4==0 && week==0){floodfill(310,110,10);floodfill(310,160,10);}if(n==2 && yr%4==0 && week==1){ floodfill(310,160,10);floodfill(310,210,10);}if(n==2 && yr%4==0 && week==2){floodfill(310,210,10);floodfill(310,260,10);}if(n==2 &&yr%4==0&&week==3){floodfill(310,260,10);floodfill(310,310,10);}if(n==2&&yr%4==0&&week==4){floodfill(310,310,10);floodfill(310,360,10);}if(n==2&&yr%4==0&&week==5){floodfill(310,360,10);floodfill(360,60,10);}if(n==2&&yr%4==0&&week==6){floodfill(360,60,10);floodfill(360,110,10);}settextstyle(0,0,1);setcolor(12);gotoxy (5,2);if(n==1){printf(" JANUARY--%d ",yr);if(yr>=1950)outtextxy(430,100,"26--Republic Day");}if(n==2){printf(" FEBRUARY--%d ",yr);outtextxy(430,100,"14-Valentaince Day");}if(n==3)printf(" MARCH--%d ",yr);if(n==4){printf(" APRIL--%d ",yr);if(yr>1950)outtextxy(430,100,"14-Ambedkar Day");}if(n==5){printf(" MAY--%d ",yr);outtextxy(430,100,"01-Labour's Day");}if(n==6){printf(" JUNE--%d ",yr);outtextxy(430,100,"05-World Environmental Day");}if(n==7){printf(" JULY--%d ",yr);outtextxy(430,100,"11-World Population Day");}if(n==8){printf(" AUGUST--%d ",yr);if(yr>=1947)outtextxy(430,100,"15-Independence Day");}if(n==9){printf(" SEPTEMBER--%d ",yr);if(yr>=1960)outtextxy(430,100,"05-Tcher's Day");outtextxy(430,110,"15-Engineer's Day");}if(n==10){printf(" OCTOBER--%d ",yr);if(yr>1869)outtextxy(430,100,"02-Gandhi Jayanthi");}if(n==11){printf(" NOVEMBER--%d ",yr);if(yr>1947)outtextxy(430,100,"14-Children's Day");if(yr>1600)outtextxy(430,110,"15--Guru Nanak Birthday");}if(n==12){printf(" DECEMBER--%d ",yr);outtextxy(430,100,"03-World Handicap's Day");outtextxy(430,110,"25-Christmas");}getch();}void drawcal(){int i,j,x;clrdevice();setcolor(10);for(i=50;i<=310;i+=50)for(j=50;j<=350;j+=50)rectangle(50+i,0+j,100+i,50+j);settextstyle(1,0,2);for(x=0;x<=300;x+=50)rectangle(20,50+x,100,100+x);setcolor(7);outtextxy(30,60,"SUN");outtextxy(30,110,"MON");outtextxy(30,160,"TUE");outtextxy(30,210,"WED");outtextxy(30,260,"THU");outtextxy(30,310,"FRI");outtextxy(30,360,"SAT");setcolor(13);settextstyle(5,0,1);outtextxy(170,4,"DINESH KUMAR");outtextxy(170,5,"_______________");}