[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.