1-11 Exercise 1: UPPER and lower letters

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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.
[Exercise] Coding (C) - asked in Chapter 13: Strings
ID: 41431 - Available when: Unlimited - Due to: Unlimited
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57 Answers

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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
 **   *** *  ***  ** *  **  ** a[100];
*    *** **    * **   *    ****  * *  
***** * **   ****  *  **     * i;
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 **  *         *     *  ** * **** * *   * ***   ** **** *  * **  **         *  *    * * * *

    }
***    ****    ***  *   ** * ** *   ****  ** **  *   *
**  **  ** ***  *  **    ** * 0;
}
answered by (-140 points)
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Case 0: Correct output
Case 1: Correct output
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
*  **   * ** **      ** * *   *** a[100];
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  *** *  ***  *  *  **  **    i;
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    }
* *  **  *   * *** *    ** * **  *** ** * *  **      
 ******* *   * ****  **   ***  0;
}
answered by (-140 points)
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prog.c: In function 'main':
prog.c:13:28: error: expected expression before '[' token
         else if(a[i]>='A'&&[i]<'Z')
                            ^
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#include   *  **    *  * 

int main ()
{
 *  **  **** *     c = 0;
* * * **   ** ** * **  ****  ch, s[1000];

*****  *  ** *  * **  ******  *****  a * ***   **  ** 
 **** * ** **   **  ** *

** *   **** **      *** * (s[c] != '\0') {
*   **  *  *   ***** ** *  **** *  **  * *  = s[c];
 *  ** * *  * *  ** *  * **** * *  ** * * (ch >= 'A'  *  **   *  ch <= 'Z')
*** ** *    * ***    * ** * ***  * * **  ****     * * *** * = s[c] + 32;
************ **  *  *     **     * ******* if (ch >= 'a'       *   ***  *  ch <= 'z')
****** ***   ******* *** * *    ** *   *     * ** **** ***  *     = s[c] - 32;
** * * *  *  ** **  ** ** *  *  *** 
 ***  ** **  *   **    **

  *** *    ****  **  * ***** * *  ** ** ** ** s);

   ****   **  *** ** *  0;
}
answered by (16 points)
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prog.c: In function 'main':
prog.c:9:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
    gets(s);
    ^~~~
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/cckJajTZ.o: In function `main':
prog.c:(.text+0x3b): warning: the `gets' function is dangerous and should not be used.
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#include   *  *    *  ***
*  * * * ***  *** * ** * *  
**  *  * *  ** *   **
int  *   ****
{
char a[1000];
int i,n;

  ** *  *  *  * *  : * *  );
**    *****  *  *** ***  ** 
*** * *  
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{
  ** *** *   * * *  ** * ***     *  ( ( a[i] >= 'a' )   ***  *** * ( a[i]   * * * 'z' ) )
  *  ****   * **  **    ****    **  *** *    *  *
  **  *** ***  * ** **         * *** ***   * * *  **       = a[i] - 'a' + 'A';
    *  *       **  *****  * **   ****     *  *   *       
* *  *  **    *    *  if( ( a[i] *** * 'A' ) * ***  *   **  * ( a[i]   ** *** 'Z' ) )
  *   *** **  ****    ** ** *   *      * * *  ** * *       
 **  **  *  ** ****   * * * ***  ****     ** **  ***** = a[i] + 'a' - 'A';
 **  * ** * *   *  *  *   *  ** *   * *** * ** *  ** 
}

printf(    ** *  *   * **    a );

 ** **** * **** **  *     
return 0;
}
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prog.c: In function 'main':
prog.c:10:1: 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__;
              ^~~~
prog.c:11:3: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
 n=strlen(a);
   ^~~~~~
prog.c:11:3: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:3: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccbGRkOb.o: In function `main':
prog.c:(.text+0x25): warning: the `gets' function is dangerous and should not be used.
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prog.c: In function 'main':
prog.c:11:3: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
 n=strlen(a);
   ^~~~~~
prog.c:11:3: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:3: note: include '<string.h>' or provide a declaration of 'strlen'
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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
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#include  ** *     ** 

int main ()
{
 ** * *** ***   **  **  * c = 0;
  * *  *  *  ** ****     * * ch, s[1000];
**** * * * * ** ** ** *** * * ***   * ** *** s);

******* **      ** **** (s[c] != '\0') {
** * *** *  **   ***  ***  * ***  * *  * = s[c];
* *   * * ** **  ***     * * * * **** (ch >= 'A' *** ****   ch <= 'Z')
****  **** **   * ***  * ***  *  *    * * *   *  **     * *  *   *     = s[c] + 32;
*  ***  **  **  **  **  * ** **  *  *** * if (ch >= 'a'    **** **  *  ch *     'z')
***  ** * *  *   ******** ****   *** ** **** *  *  *  * *  *** = s[c] - 32;
 *  ** *   *****  *   ** *  * **   *  ****
*   * * **   *** *    *

* * **** * *    * * **     *      **** *  s);

 ****  **   *  ** **  ** 0;
}
answered by (-140 points)
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prog.c: In function 'main':
prog.c:8:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(str);
     ^~~~
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/ccEVmRzQ.o: In function `main':
prog.c:(.text+0x30): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:7:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
    gets(s);
    ^~~~
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/ccYGFu22.o: In function `main':
prog.c:(.text+0x2f): warning: the `gets' function is dangerous and should not be used.
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:7:12: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
    scanf("%s", &s);
            ^
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
****** * * ***  *** **** a[1000];

  *** ****    * * ***    *  *  *   * ***** 

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* **  * *** ** ** *   ** ** **  *** * *  *      *** *** *  * ** ***   ** *   *    * *


    }

*** **  * *  * **  ***  *   ** * *   

* ***** **  *  * * *  * *** * 0;
}
answered by (-16 points)
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#include <stdio.h>
int main()
{
 *  * ** **   **  ** ***   a[1000];
 *** *  ** **   ***  ** *        i=0;
** ****    ***   * * **  ***   *** * *  **  
  ************   *  **   * ** (a[i]!=0)
    {
    **  ******* **   **    * **    **  ***  **  ** ****    (a[i]>64 && a[i]<91)
* **   *** **   ** ****** **** *     ** *** **  **
*  **   *    ** ** ***   * **     *  *  ******* *  * *  *    * **  ** **   * **  *   * *
* * *   * ** ** ****** * *  **   * *  *******     *    
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*** ** **  * ***  * * *** * *  ** * *   ** *
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**** *     **  ***  ***   * * ** *** *   *   *       *   *
****     *     *****  *** ** *  *  * *   * *  *** ****     *
    }
*    ** * *    *****  ****  * *  **   ** *     *  **   
* *   **  *  *******   ****  ***  ** 0;
}
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#include ****   *  * ** * 
#include ***  **  ** *   **

void main()
{
    * ** * *** **   *****   *** sentence[1000];
*   * ********* ** * ** *    count, ch, i;

**   **  *  * ****   *       (i = 0;(sentence[i] = getchar()) != '\n'; i++)
  **  *  ** **   **  *  
 *  **   * *** *  * * *     *  * ** ****   *  **  ***
    **** *  *  *  ******** 
** ** * *  * * *** * **  **   **     * = '\0';
 **  *  * *   **   * ***    * ******* = i;
 *  * ******** * ****   * * (i = 0; i < count; i++)
**   *  * *** ***   * **** ** 
***** * ***  * * *****  * * ***** * *  ***   **    * *   * =  * *       *** * ***  *   *****   :
**  * * *  *
* * **  **       *   ** *  *  **** * * * **  *** *** * * 
 **     **     *     * * *  ** 
}
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    ** *   *  * *** **
* *  ** * **  ****    *  
int ** ***
{
 ***  ***    char a[1000];
**** *  *     *  * *    *
*   *      **   int i;
 * *** ** **  **  **   * ** ****** *
  * ***   ***** ** {
   *  ** * *       *  *   *  ****  *  *** *    **  * ***  * *   *
 ******* * *  **     {
 **   *          *  ***   ** ** ** *
* * *        * *** ***  * }
*  **  *  ** *  *  * ** **  else *** *** **  *  * **  * ***  * *   * *
 **   *     **    *** *  *** ***  {
  * *          * *** **        *** * * *  ** * *** **   * * 
  *  *  *    *  *  **  * *  }
  ***  *  ***** }
*  ****    *   **   *  *   * *****    * 
}
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#include<stdio.h>
#include<string.h>
int main()
{
    int i;
    char a[1000];
    fgets(a,1000,stdin);
 *  * *    ****  * *   ****   *   ***   ** * ***  
***  * *      * * *** *   **   *  *  ** *    *  **    
   * ** * * *  * * *  *   *  *   *  **** **  *  * * * *   *    * ****  ****     *  *    **** && a[i]<='z')
 * * ** ** *  *    **   * * **  *   ****   **    ***  ***      *  **    *  *** * *  ** ** ****   **** **** **
* **   *   *** ** * *  **  ***     * * ***    ** ***   **     *** *   * ****  **    ** *   *  ** ***   *** ****   *  * *  **  ***  ***  ** **  * * * *** ** *** 
**     **      *    *  *** **** *** **** ** * *  **  * * ** *   *** ** **  **  *  ** * *   ** *** *  * *  *   
******** *      ***   * ** * * * **  ********  ****** *    * **    * ****   *  if(a[i]>='A' && a[i]<='Z')
 *  ***  * ***    *    *   * ** ** ***  *  *  *  * *  * * *** ***  ****  *** * * * **  *  * *******  *  **
**  ******** * *   *  **** ** ***  *   * *    **  *    *   ***  * *  *   ** *   * *** ** * * ** *  **   * *  ***  *  *** * *    ** ** ****  *
*  * *  *** * * **  ** *** *  * * *  ****** **   **     *** ** **   **** ** ** ****    ** **  ** * ***
*    *** *      *  ** ***  **   *    *   * *   * *** *  
***** ***** *** * **    *    * * * ***** *    *  * **** **** * *  ** **  ***
}
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