[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.