C Program to Convert a Given Number of Days in terms of Years, Weeks & Days

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This a C program which converts a given number of Days in terms of years, weeks & days.

Problem Description

This program takes the number of days as input and converts in terms of years, weeks & days.

Problem Solution

1. Take the number of days as input.
2. For the number of years, divide the input by 365 and obtain its quotient.
3. For the number of weeks, divide the input by 365 and obtain its remainder.Further divide the remainder by 7(no of days in a week) and obtain its quotient.
4. For the number of days, divide the input by 365 and obtain its remainder.Further divide the remainder by 7(no of days in a week) and obtain its remainder.

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Program/Source Code

Here is source code of the C program to converts a given number of Days in terms of years, weeks & days. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

  1. /*
  2.  * C program to convert given number of days to a measure of time given
  3.  * in years, weeks and days. For example 375 days is equal to 1 year
  4.  * 1 week and 3 days (ignore leap year)
  5.  */
  6. #include <stdio.h>
  7. #define DAYSINWEEK 7
  8.  
  9. void main()
  10. {
  11.     int ndays, year, week, days;
  12.  
  13.     printf("Enter the number of days\n");
  14.     scanf("%d", &ndays);
  15.     year = ndays / 365;
  16.     week =(ndays % 365) / DAYSINWEEK;
  17.     days =(ndays % 365) % DAYSINWEEK;
  18.     printf ("%d is equivalent to %d years, %d weeks and %d daysn",
  19.             ndays, year, week, days);
  20. }
Program Explanation

1. Take the number of days as input and store it in variable ndays.
2. For the number of years, divide the input by 365(no of days in a year) and obtain its quotient.Store this in the variable year.
3. For the number of weeks, divide the input by 365 and obtain its remainder.Further divide the remainder by 7(no of days in a week) and obtain its quotient.Store this in the variable week.
4. For the number of days, divide the input by 365 and obtain its remainder.Further divide the remainder by 7(no of days in a week) and obtain its remainder.Store this in the variable days.
5. Print the output and exit.

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Runtime Test Cases
Case:1
Enter the number of days
29
29 is equivalent to 0 years, 4 weeks and 1 days
 
Case:2
Enter the number of days
1000
1000 is equivalent to 2 years, 38 weeks and 4 days

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If you wish to look at other example programs on Simple C Programs, go to Simple C Programs. If you wish to look at programming examples on all topics, go to C Programming Examples.

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn