[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.