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