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