[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.