[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.