[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.