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