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