Day Name Finder using C++

 

#include<iostream>    //use iostream.h in TurboC++

#include<conio.h>

using namespace std;   //comment this line in TurboC++ 

int dayofweek(int d,int m,int y)

{

static int t[]={0,3,2,5,0,3,5,1,4,6,2,4};

y-=m<3;

   /*if(m<3)   //this (if) line and the above line of code is same as for the functioning aspect

y-=m;*/

return(y + y/4 - y/100 + y/400 + t[m-1] + d) % 7;

}

int main(void)

{

int d,m,y;

cout<<"\nDay Name Finder \"Enter the below data to find the day on that date:\" ";

cout<<"\n\nEnter date: ";

cin>>d;

cout<<"\nEnter Month: ";

cin>>m;

cout<<"\nEnter Year: ";

cin>>y;

cout<<"\nThe Day on this date is ->: ";

switch(dayofweek(d,m,y))

{

case 0:cout<<" Sunday";break;

case 1:cout<<" Monday";break;

case 2:cout<<" Tuesday";break;

case 3:cout<<" Wednesday";break;

case 4:cout<<" Thursday";break;

case 5:cout<<" Friday";break;

case 6:cout<<" Saturday";break;

}

//getch();   //Use this line in TurboC++ to hold Console Screen

}