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