[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.