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