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