[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.