Enter Date Month Year and get the Exact Day...

This is the C Program....................  Calender.c  ................... Run it and check it out... If there is any fault, then in4m..... Comments are welcome....

#include
#include
main()
{
int date, month, year, days, nyear;
int x,y,k,weeks,new, remainder;
int odd_days, total_odd_days,leap_odd_days,leapyear_odd_days;
printf("Enter date-month-year");
scanf("%d%d%d",&date,&month,&year);

nyear=year-1;
x=nyear%100;
new=nyear-x;
remainder=new%400;

if(remainder%400==0)
leap_odd_days=0;
if(remainder%400==100)
leap_odd_days=5;
if(remainder%400==200)
leap_odd_days=3;
if(remainder%400==300)
leap_odd_days=1;

y=x/4;
k=(y+x)%7;

leapyear_odd_days=k+leap_odd_days;


    if(month==1)
        days=date;
    else if(month==2)
        days=31+date;
    else if(month==3)
    {
        if(year%4==0)
            days=31+29+date;
        else
            days=31+28+date;
    }

    else if(month==4)
    {
        if(year%4==0)
            days=31+29+31+date;
        else
            days=31+28+31+date;
    }

    else if(month==5)
    {
        if(year%4==0)       
            days=31+29+31+30+date;
        else
            days=31+28+31+30+date;
    }

    else if(month==6)
    {
        if(year%4==0)
            days=31+29+31+30+31+date;
        else
            days=31+28+31+30+31+date;
    }

    else if(month==7)
    {
        if(year%4==0)
            days=31+29+31+30+31+30+date;
        else
            days=31+28+31+30+31+30+date;
    }

    else if(month==8)
    {
        if(year%4==0)
            days=31+29+31+30+31+30+31+date;
        else
            days=31+28+31+30+31+30+31+date;
    }

    else if(month==9)
    {
        if(year%4==0)
            days=31+29+31+30+31+30+31+31+date;
        else
            days=31+28+31+30+31+30+31+31+date;
    }

    else if(month==10)
    {
        if(year%4==0)
            days=31+29+31+30+31+30+31+31+30+date;
        else
            days=31+28+31+30+31+30+31+31+30+date;
    }

    else if(month==11)
    {
        if(year%4==0)
            days=31+29+31+30+31+30+31+31+30+31+date;
        else
            days=31+28+31+30+31+30+31+31+30+31+date;
    }           

    else if(month==12)
    {
        if(year%4==0)
            days=31+29+31+30+31+30+31+31+30+31+30+date;
        else
            days=31+28+31+30+31+30+31+31+30+31+30+date;
    }

weeks=days/7;
odd_days=days%7;

total_odd_days=leapyear_odd_days + odd_days;

if((total_odd_days % 7 )== 0)
printf("\nSUNDAY");

if((total_odd_days % 7 )== 1)
printf("\nMONDAY");

if((total_odd_days % 7 )== 2)
printf("\nTUESDAY");

if((total_odd_days % 7 )== 3)
printf("\nWEDNESDAY");

if((total_odd_days % 7 )== 4)
printf("\nTHURSDAY");

if((total_odd_days % 7 )== 5)
printf("\nFRIDAY");

if((total_odd_days % 7 )== 6)
printf("\nSATURDAY");

printf("\n");
}