[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.