[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.