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;
}
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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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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)
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')
     *     ***    * * * * ** **          *     ***    *  **** = 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)
    {
*  ****** ***   **    ***  *****     ***** *    ***     * (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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