[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.