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