[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.