1-11 Exercise 1: UPPER and lower letters

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()
{
    char a[100];
    int i;
*** *****    * *** *   ** *
****     * * *   **** **  *  **    * *  *  ** 
* ** * *** **     * * *  *   ** *  ******* *** **  * * ****    **  **  *  *  * * * * *  *   * *
* ** ****** ** *** *** *  * * ***  **** ****  *       ******  *     *** **     **** *****    ***  
 ** * ***   *  ** * *  * *   ** ***********  **  *** *      * * * * * ***  ** ***   *  *  **  *
 ***   * **   *   **  ******  **  *** *   *  *  *** *  ***** **   * ****  * *  * *
  * * **  *    *  **  **  *  * ***
* **   ******* *   * **  *    0;
}

Comments

prog.c: In function 'main':
prog.c:6:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(a);
     ^~~~
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/ccsN5nEo.o: In function `main':
prog.c:(.text+0x1f): warning: the `gets' function is dangerous and should not be used.

Answer 2

Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{

 ***  ** *** **** * *****   *** i;
  * *   *   ***** **  ***** str1[1000],str2[1000]={0};
*  * * ******   * **** *  *  *  *  * *****  a sentence to convert upper to lower and vice versa\n");
 ** ***  ****** *** ** *** * *

 **   **  ** **     * **** ******* *    ***  *** *
  ***     *** *** *    * ***
****   ** * *   *  *     ***   **  **** *****  ****** * *** **** * *     &&str1[i]<='z')
** *   *     * * *    ****** *  * *    ***       * * *  
 ** *    *    ***  **   * * * *** *  *   **    *** * ** *** ** ***    *  *    *  *** *** *  
 *** * ** ***** *    **   **   **  *** * **   *  ***
 *  * **     * ** **   ** ** ****  *  *     * ****  *  ****  *      ***  ****  *** *    **   *  ** *
 *** *  *  *  ** *  ** *   **  *** ***  *     * ** ** * *  *    ** **  ***   *** **** *** ** 
* *       *  ** * * ** *     
  *  * **** *  *   **  * * **   
  **** *  **  ***  ***** ***** ** *****  **  ** * * ***  *   * *   
*  *  **     *** *  *      ***
}
printf("%s\n",str2);
return 0;
}

Comments

prog.c: In function 'main':
prog.c:9:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(str1);
     ^~~~
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/cc2ji0XA.o: In function `main':
prog.c:(.text+0x3d): warning: the `gets' function is dangerous and should not be used.

Answer 3

Hidden content!
#include **** **** **
#include * *** **   ** *
#include     * * ** * *

int main()
{
** * *** * *** ** * *  ** *   array[1000] = {0};

***    **  * *   ** * **  * ** i = 0;

 * *  * ***  * * * *  * * * *   1000, stdin);

********* * ******* *   *   * len = strlen(array);

 ** *   *** * ** *  **** *      = 0; i < len; i++)
***   **  *  *  * ****   *  
  *****  *    *  * **  ***  ** ***  ** * * **  **** *   * *  **  * >= 'A') && (array[i] <= 'Z'))
** **     ***  *     ** **  * *** *  * *     * ***   *
*** * ****    * * *   *  ** *    *** * *   **  ** * ** ** **  *     *  * **  *** * **** += 32;
 *       **    * ** ** *** * *  **     *    *   * ***
  *** *  **      * * * **** *     ** * **   * ** ** ** if((array[i] >= 'a') && (array[i] <= 'z'))
**** **  **   ***   ****     **   ** *** **** **  *** **  ****
*  * ** **  ** *****      **  *** * *    ** * * ** * **   **** *  *       ** *****     -= 32;
  * ** ****** **   *** *   **   ** * *** **    *   ***  

****  ** *** *** * * * **  **      ********* * ** *  *   ********   *  array[i]);
  ** **  ****** *  * *   
****   * * * ***    *  *     ****** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include * * ***     **  ****
#include *    *   *        *
#include  ** ** *  *** * *

int main()
{
 *   *  **    ***** *    a[1000];
****  *  *** ***** *   ***   i;
* *      ****   *  ** *  **    * *   ***   

 * * **   *   *  * **  * * * len = strlen(a);
 *    **   ***** **    * **  *** = 0 ; i < len ; i++)
   **  * *   * ***    * ******* 
    *   *** * *   ** *  *  * *******  *   * * *      *  * >= 'A' && a[i] <= 'Z')
 *    *   * *** **     * *   *  ** * *** * **  **   * ** * ***  **  * *  **** * * * += 32;
* ***  *** *** ** **   ****  * ***      *** *   *   ***  if(a[i] >= 'a'  *    *  ***** a[i] <= 'z')
 *  **** *   *   *  * * *  * ***  *    *  **   *   * ****     *  **   ** ** * -= 32;
 *  **    ***  ** *  *   *  ** ***  *  * ****** * ***** * ** **  **  * **  * * **  * 
* **  **  **** ****** ***  *

    ****** ******** **   **  *  * * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
   *** ** * *  * *   
 ****   *   **  * *  

int main()
{
int i,txtlen;
char sentence[1000];
***   *** *** ** ***

* ** **     * *

* * *** *  * * *  **  
{

*     *  *  * *  ****  ** * (sentence[i]>=65 && sentence[i]<=90)
  *******   ******* * * **   ***  **** * * ** *** 
   * ** ****  *  ** *     *  * **      **  ****** **   ***    ** *   *   *  **  *  **  
  ** ** *   **   * *  *    ** **** *** *  * ** *** * * *   *   ** *  *****   && sentence[i]<=122)
**  *** ** * *  **   *  ** ***  *  *  **        * * *    
* * *  ** * * * * *  ********** ****  * **   * *  **  **  ***      *** ** *  **** *  
* *  **** **  *     *  **      **** *    *     **** ** * * 
 ** ** ** * * * *** * *  
}


}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 6

Hidden content!
  ** *     *  *  *
*   *** ***  *  ** *

int main()
{
int i,txtlen;
char sentence[100];
  ** * ** ****** ***

  *   * *   *

* *    ****   ***  
{

 *   ** *    ** **    * ** (sentence[i]>=65 && sentence[i]<=90)
  * **   *  *** *    *   ** * *   ** *     * *   
*  *  ***   * **   **  * * ******* **   *    ** **    * ** ** **** ** * ***   **   ** ***
 * *    ******   *  *      ** **  *      *  *  * *** ***   ** *** *  ** && sentence[i]<=122)
*   *** ****  *   * * **** * *  * ********* *********** ***** 
    ****    * * *   *  ** *      * **** ****   **  *      *  *  ******* * *  ***    *** **  *
      **   *******  **  *** ***   *  *** **** * * *    ** 
****  *  *    ***  *  ***   * **    * 
}


}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 7

Hidden content!
#include <stdio.h>
#include   **     *  

int main()
{
 ******* * * *   *** **  * array[100] = {0};

  **** *  **** * * ** *  ** i = 0;

 * *     ***   * ** ** *    = 0; i < 100; i++)
**   *  *****    *  * * 
*** *** **** *   * **   **** *   *** *  *  * *   *       *** * * **   *  &array[i]);
   *     ** *    *** * **

**** ****** *   *  *  **  ***  ** = 0; i < 100; i++)
* * **  *   *** *   *****
     ***     ** *   ********  **** **      **  *** *   * * **  >= 'A') && (array[i] <= 'Z'))
 *    * * *  ** * ** ** *    *** *** *    * *  **   * 
    * **  ** **  *  ***** ** * * *** * * ** * *    * ***  ** *   *      ***   *  **      * * += 32;
  * *  ** ***    ** ***** * *  * **** *               *** *
    **  ****  * *   ***   *** ***** **  **   **  *** *    * if((array[i] >= 'a') && (array[i] <= 'z'))
  ** **** * **** *    * ** ***   ** ** ******* * *  *
* * **  ** **** **** *    * **   * **   **    ** * **   *   *    *    *  ** **  **** ***   *  -= 32;
* ** ** * * ** * ******  ** * * *  * ***** ***  ***** 

 * * * *  *** *     *  *** **** * *  **       * *     ** *****  *  * ***   ** array[i]);
   * **  * ***   * **   * 
 ** *** ***** ****** ****** * * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 8

Hidden content!
#include * * ***** *  *****
#include **  **  * **   
*** *******  **  * *
int   ***  **
{
   *  * ** * int c,sws, sayac;
*  *      *  ** **   *  *  **    *   *
*    *** ******     *** *   **  * *     1000, stdin);
* **            **    * *  * =     * *      * *
       **   * * * **  ***   (c = 0; c< *     *
   **    ** *** *  ** sws = * ** ***   ** *     * ** : *** **  *  ***  ***   * ** * * }}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

prog.c: In function 'main':
prog.c:9:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(string);
     ^~~~
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/ccfLRc9i.o: In function `main':
prog.c:(.text+0x2f): warning: the `gets' function is dangerous and should not be used.

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

prog.c:2:19: fatal error: conio.h: No such file or directory
 #include <conio.h>
                   ^
compilation terminated.

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
    int i,t;
    char a[300];
  * **  *   * *  ****** **   **  **** *
**    *   ****** **   ** *  *******   *  *** 
  ***   *** **** *      *      ** *    *  **   ******
* ***   *   *  *   * ** **    **** ** *  ***   ***** ** ***  *** ** * *    ***    *
 **  *** ** ** **    *    *   **  * *****   *** ** *   * *  * *  *  && t>64){
   *****  * * **  ** **     *   *  *  *  *   * * *****  * ******* *         **** *  * 
*    *   ** ** *  *  ***  ******* * *  **  **  *  *** *  **** *    *  ** * *  *    *  *  *
  *  * *      *   ***  * *   *  * ****  * * * ** **
  ***  *    ***** * * *  **  *    *  ** ** ****     *   *  if(t<123 && t>96){
*       * **  *  ********  *** *     * **  * *   **** **     *  *  *******  *   
  *** *  * *  **     **   *    ** * *     *    * ** ** *** *  * **  * ** ******* * * ***
***  *  *** *****  *         **** *** **   ***          **** **
 * ***    ** *   * *  ** ** ***   * ***  *  *     * * * ***  ** *   *** * ** * ***   * * ***** 
    }
  ***  ** *** * *******  ** * ******     **   **  *
* *   * ***    * * **  **  *** *   * 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 10

Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
    int i,t;
    char a[200];
  * * ****    **** **   **   *   
***  *     *  **** **** *  *   ***   **   *  ** * ** * 
***   ** *   ***  **  ** *    * ** ******  * **** * ** *
 *  ** * **   * * **** ** * * ** ** *   ** *  * **** **  * * * *  **  **
*     * ***  ** * ****   * *** *  * *   * * ***   * ** ***   && t>64){
  *  * *** *    ***  **     **   **** *  * *  * *** * *     **** * ***    ******  *    ***  **
* ** *  ** * *   * **   *****   *      *    **  * * ***    **  * * *  *******  ****
  *** ***   *   * ** *  ** ** *    * * *  ****   * 
* *** **** *     *** * ***** **   ***   *  *** * **   ***   *  if(t<123 && t>96){
* * ****** *** ** * ** * ** ** **  ***  * **    *     *** *** *   ***    ** **  *   ***  * * 
* ***   **** *** *  *   *   *** * * ****** *   **   *   * * * * *   ** **  *  * * ** 
 **  *** * ** ***** * ******   ***  ****** *** *****   * * *
**       * *   *** * *****   *  * *****   * * **  *    * *  *  * * *    ******    
    }
* *** ** **  * **   *** *  **  *  *  *   **  ** *  * 
***    **  ** ** *    **  *******  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output