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()
{
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    *  *** *    * ***  *  * * ***  * ****  &days);
    * **  *   **      **    ****      *   *  *   *  * &start);

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

* * ***   ** *** ** * * *   * *   = 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