[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.