Showing posts with label Program to compute difference between two dates. Show all posts
Showing posts with label Program to compute difference between two dates. Show all posts

Program to compute difference between two dates

#include "stdio.h"
#include "math.h"
void main()
{
int day1,mon1,year1,day2,mon2,year2;
int ref,dd1,dd2,i;
clrscr();
printf("Enter first day, month, year");
scanf("%d%d%d",&day1,&mon1,&year1);
scanf("%d%d%d",&day2,&mon2,&year2);
ref = year1;
if(year2
ref = year2;
dd1=0;
dd1=func1(mon1);
for(i=ref;i
{
if(i%4==0)
dd1+=1;
}
dd1=dd1+day1+(year1-ref)*365;
printf("No. of days of first date fronm the Jan 1 %d= %d",year1,dd1);
/* Count for additional days due to leap years*/
dd2=0;
for(i=ref;i
{
if(i%4==0)
dd2+=1;
}
dd2=func1(mon2)+dd2+day2+((year2-ref)*365);
printf("No. of days from the reference year's first Jan = %d",dd2);
printf("Therefore, diff between the two dates is %d",abs(dd2-dd1));

getch();
}




int func1(x) //x for month y for dd
{ int y=0;
switch(x)
{
case 1: y=0; break;
case 2: y=31; break;
case 3: y=59; break;
case 4: y=90; break;
case 5: y=120;break;
case 6: y=151; break;
case 7: y=181; break;
case 8: y=212; break;
case 9: y=243; break;
case 10:y=273; break;
case 11:y=304; break;
case 12:y=334; break;
default: printf("Error encountered"); exit(1);
}
return(y);
}

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