[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.