C program to convert days to years, week and days

C Program to convert days into years, week and days:

By Ahmad Irshad | Programming Exercises and Solutions > Program to convert dyas to years.

Write a C program to take days as input form user and convert it to years, weeks and days. Waht is the step by step logic to covert days into years, weeks and days are given below. 

Before writing any program you just imagine about output screen first. Like what input to be given, and output to be displayed. Let's have a look at the below example.

1. INPUT
2. 
   
3. Please enter the number of days: 789
   

  OUTPUT

years = 2

Weeks = 8

Days = 3

Required knowledge for this exercise is: 

Basic Input output, Data Type, Arithmetic operators 

Logic to convert days to years, weeks & days: 

1) Print a massage to the user like "Please enter the number of days:" using printf();

2) Input number of days from user and store it in a variable days using scanf();

3) Now convert days to years, weeks and days using below farmula

years = (days / 365); // Ignoring leap year 

weeks = (days % 365) / 7; 

days = (days % 365) % 7; 

4) At last print the resltant values. that's it!

Program to convert days to years, weeks & days: 

1. /* C program to convert days to years, weeks & days */
   
2. #include <stdio.h> int main() { int days, years, weeks; /* Input total number of days from user */ printf("Please enter the number of days: "); scanf("%d", &days); /* Conversion to years, weeks & days */ years = (days / 365); // Ignoring leap year weeks = (days % 365) / 7; days = (days % 365) % 7; /* Print all resultant values */ printf("YEARS: %d\n", years); printf("WEEKS: %d\n", weeks); printf("DAYS: %d", days); return 0; }

Output:

1. Please enter the number of days: 789
2. YEARS = 2
3. WEEKS = 8
4. DAYS = 3

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