[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.