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