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