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