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