[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.