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