11-09 Exercise 1: Print a one-month calendar

Question

Write a program that prints a one-month calendar. The user specifies 2 numbers in the input:

- The number of days in the month

- The day of the week on which the month begins ( starting day of the week: 1=Sun;2=Mon;3=Tue;4=Wed;5=Thu;6=Fri;7=Sat)

寫一個程式 印出指定月份的月曆：

- 輸入一整數代表這個月有幾天

- 輸入一整數代表這個月一號星期幾 (1=星期天，2=星期一，...)

Example input:

31
3

Example output:

       1  2  3  4  5
 6  7  8  9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31

Hint: The most important part is a for statement that uses a variable i to count from 1 to n, where n is the number of days in a month, printing each value of i.   Inside the loop, an if statement tests whether i is the last day in a week; if so, it prints a newline.

Answer 1

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
** *** *  **** *  *** **    *  i, j, days, start;

 *  **  *****  *** ***** * * *    * *** ** &days);
*      *  ** * ***   *  * ** *   * *  **  ** &start);

*** *  * ** **       *  * = 1; j < start; j++)
   *   ****** *       **   
** * ***  ***  *  *** *     * ** *    * *** ** * **  ***  * *   *  * *** ****  *
*   * *****  **   *      *   

* ****    **  *  * * ***  ** * = 1; i <= days; i++)
  **** **** * *  *   *     
*********  **    ***  **   ********  * ***  *  ***  *  * ** **  *   * i);
* ***** *** *****     **   * * ** *  ***  ** ** * *   * **    + i - 1) % 7 == 0)
*   **   **  **  *     ** ****   *  **  *  ***   **** ** **    * *** * *    *  *   * *** * *   
*  *      ***  * **  ***  **** ***      * ***  ***  if(i < days)
* * *   ** * * *** ** *   *      **  * *    **    ** * ****  * * **  *     * ** ** **** ***  ");
 **** **     ***   *    ****  

***** * * ***     *** * *  *   **  * ** * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output