[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.