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