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