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()
{
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**** *            **  *   *  **  i;
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    }
  * * *** *** * **  *  *   **  ** *** ******** *** * 
**  **  **   **  *     *  ****** *  0;
}
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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()
{
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    }
*  **  *******   *  ** **** * ****  *  ** * **  **
 **** *  *  * ** **** * **    ** 0;
}
answered by (-140 points)
0 0
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;

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

printf(       **   ** *    a );

 *  *   *  *     *    * *
return 0;
}
answered by (-32 points)
edited by
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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.
commented by (4.3k points)
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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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#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)
    {
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  **  *  * *  *** ****   * ** * * **        **  ***  
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   ***** * * * **  ******  ** *  ***   ** *      *    **
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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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