[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.