[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.