[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.