[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.