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