[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.