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