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];
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***        ****  * * * *** * i;
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    }
*      *  *   * **    **   *   ** **  **** *   * * * * 
**   ** * ** *  *   ** **   ***  *  0;
}
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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];
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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;

 * *  * ** * *  :  *** * * );
   ***  **      * *****  
* *   * 
*  **  ***    * 
{
     ** ** * ***  ** *      * ( ( a[i] >= 'a' )   ** **    ( a[i] *** *  'z' ) )
 *  **  *  *** * * **  *     **** *  ***  * **
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* * * **   * **    * * *      ** *  **  *    *** *
  * *   * ***    **      * ****  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)
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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)
    {
* *  * **   * *  **  *   * *  ** * * *   *  ****** * (a[i]>64 && a[i]<91)
 ** *  **      *     *    ** ****   *     *** **  ** * *
*        **  * **  *** * * *  * *   *    *  **   *  * ********* * **   ** * * **  ****  **
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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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