[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.