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