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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    }
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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()
{
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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;

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*** *****
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{
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 ***    *  ** ****   * **   * * **   *  *    * *
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  *    *  *  ***       * *** *** ***    ** *** 
***   *  * *  *** * ** *   if( ( a[i] *** * 'A' )   * * **** *  ( a[i] **   'Z' ) )
*  * **       ****  *** * *   **** * ** * *  * *  *
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 ***    *** * **** *     *    ** ***  *  *  *    * 
}

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.
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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')
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*   * * ** *    * ** 

  *  *   *    ***   *** ** ** * *  ***   **  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];

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

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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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    }
*  *  ** *   ****  **** ****  *     *** * * * 
**  *  **     **  *  ***   *   **  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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**** *** **  * 
**** **  * **  ** *     * *  ***   * * **** *  **   *** *** *   
 ***  *  *** *   * ***  *  ** ***
}
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  **  * ** * ** * ** 
 **  *  * *****   *** *
int    *   
{
  * ***  * * * char a[1000];
*  * **      * ***  **  * *  **  * 
*  * *   **      * int i;
* *** ** * **  *  **** **** *   **    
*  *   * *  *  {
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**  * **  * *         {
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 *  * *   ** * *    ***   }
* *****   *  * ** *  * *    **  else ** * *  * *** **      **     **  *
** **    * **    **   ** *** * {
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 **  *        * *** ** * * ** **  }
 ***  *****    }
***  **    *  **  *   **  *  * *   **  *  
}
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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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