[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.