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