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

    }
*      **  **    *   *  *****     **    * ******
   ** ****    ****  * *    **  0;
}
answered by (-140 points)
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Case 1: Correct output
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
**  *  ** * **   ** * *** * a[100];
*** * * * * ***      *** ***  ** 
**  ***** * *     **** **     i;
 **  * ** ** *   * ***  **** * ** **  *   *  **  
**   * *    *  **   *     * 
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***** *     * **  *  *  ****   * ***  ****  *   *  *  *   ****  * ***  ** **  *      *
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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)
0 0
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;

* *   ** *    ***  : **** * * );
 ** * *  *  **  ***  *
*** ** 
 *****  * **
{
    *  *    ***  ** *  ** ***  ( ( 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;
}
answered by (-32 points)
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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)
edited by
0 0
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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Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

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

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

 *   *   *   * *  *  * *   i;
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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)
 **  **    * ** * *   ******** *  * ** **** **   *
*   **   *  *  *   ** *  * ***    *  ** ** *     ****** * *  *     **** **  ***   ** *  *       
  *  *  * **************     *  *   ** ** ***    *
** ********   *** ****   ** * ** ** * ***  ** *  *  *    if (a[i]>96 && a[i]<123)
  *   * **  ***  **  *    *  * **     *   **  *  * ** 
** *** *** * *   *********** *** ***  ***    **  ****  *    *  * **   * *  * ***
    ** * ** **  * ***** ** *   * ** * *   ** ** * **   
*** * *   * ** *** ** *   *****  ** * ** * *   *** *** 
    }
***   *   * * *** * ****  **** **  ** * *  
** **** ** *  ** * *      **  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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