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