[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.