[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.