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;
}
answered by (-140 points)
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Case 1: Correct output
Case 2: Correct output
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
**   **    *  **   ** **  *    * a[100];
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    }
   ****  **  *** ***   *   *  ***** ** ** * *
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}
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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***     *  *   ***   *  **  ** **   **** **      * *  *         = a[i] - 'a' + 'A';
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* **   **** **  *  ** *  *  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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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)
    {
 *    ***    **  * **    **  **   *     **  *  **  ** (a[i]>64 && a[i]<91)
   ** ****  ***  * **  ****** **** *  **   * ****   
*  **  ***  **   * ** ** **  *    *** **  ** ** *    ** * * * ******    ***  *  *    ***  * *
*   * *  *   *   **  * * ** * ** **   ** ****    ***
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* ** ****  * ****   * ***   ***** *** *** ** *  *     ***      
*    * *  ** ****  * *  ***     ** **  ** *    *  ****     **   ** ** ** *  ** ***   ** 
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    }
*  * *  ***** *    ***     *   *  * *   *     * ***
*   **** **    * *    * ***   **** 0;
}
answered by (-229 points)
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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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