[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.