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