[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.