[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.