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