[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.