[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.