[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.