[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.