[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.