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