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;

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

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

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

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

Comments

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