[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.