[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.