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