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