[Makeup] Final Exam 1 (20%)

Question

Write a program that reads strings of up to 1000 characters continuously and displays them, after replacing the lower letters with upper letters and vice versa.

寫一個程式 輸入一個字串(最多1000)  把小寫轉大寫大寫轉小寫

Example input:

With the rise in GLOBAL warming and increasing POLLUTION levels, it is becoming essential to find a viable alternative to the internal combustion engine petrol powered CAR.

Example output:

wITH THE RISE IN global WARMING AND INCREASING pollution LEVELS, IT IS BECOMING ESSENTIAL TO FIND A VIABLE ALTERNATIVE TO THE INTERNAL COMBUSTION ENGINE PETROL POWERED car.

Answer 1

Hidden content!
#include <stdio.h>
int main()
{
   ** *     **  *  **   *   *****  i=0;
** *  *  **      *******  * * *   a[1000];
  **  * * *  ** * **** *** *** ** 
  **** * ** *  ***  *   ** ** * *  (a[i]!=0)
    {
 * ****  *  * *   *      ****  **** *     *** * (a[i]>64 && a[i]<91)
   *  * * * ***     **  ** **** *   *  *    *  **
**  * * **** ** *****   *  *  ** **** * **  ****  ** ****  *  *  *******   * *** 
*    ** **  ***   *  * *  **   *         *    *   * * 
  *    ** **** ** * * * * **  * **   * *  *    * * *  if (a[i]>96 && a[i]<123)
 ** * ***** *     **       *     ***** *       *  *
* * *** * ****    *  ** ***   **** ** **   ** *    * *******         *       * *** * *
   **    *  * *  * *  ***  * **   *  ** *      ** ***  * *
 **  **   * ** ** *  * * ***** *   **    *   *  *** 
    }
 *******   **  *     ** **  ** * *      ****     * 
**  ** *            *   * ****    0;

Comments

prog.c: In function 'main':
prog.c:20:5: error: expected declaration or statement at end of input
     return 0;
     ^~~~~~

Answer 2

Hidden content!
#include *  * *  **    * **   
#include  * *****   ** 

int main(){
  **  * ** *  **  * *   ****** **  * str[1000];
  * ***    *   * *** ***  len,i;

** ***   ***  *   *   ****          *  
******* ** ****  * ****    ****     = strlen(str)-1;

* *  ***  ***  * * ***  ******** *  * * *** *  ***
* *** * *  *  * *****  * ***  * *    * * * *** *   *** >= 'a' && str[i] <= 'z')
 ** * ****     *  ** **   * * * *  **  * **** *****    ** ****  **  * * ****  *  *  = str[i]-32;
 ****  ***   ****  **  ***** * *** ***  *   *    * ** if(str[i] >= 'A' **    ***    * * str[i] <= 'Z')
     *****   **  *  *  * *   ****** *    * ***     *** *** *  **  ** * *** * *   *** * *  * = str[i]+32;
   * ** *  * ****    *** * 

*   ***    *   * **** *  * ***   **       * *  

  ** *  *  ** * 0;
*****    *  **

Comments

prog.c: In function 'main':
prog.c:8:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(str);
     ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/tmp/ccBoKIfO.o: In function `main':
prog.c:(.text+0x25): warning: the `gets' function is dangerous and should not be used.