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