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