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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    }
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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()
{
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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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  **     * *  * **   *** * ***** **** * *** ** **  *    = a[i] - 'a' + 'A';
* * *** * *   **    **** * *****           *  * * ***** 
*** * * *** ***** ***** * ***  * 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')
* *  *   *   **  ***** *** *   **  * **   * ******   **  * ***    = s[c] - 32;
* ****    **** **     ** *     ** **   **  
       ****  *** 

* *       *** ***   * *** **  *  *  * *** s);

** **   ** *   * *    *  *    0;
}
answered by (-140 points)
edited by
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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;
}
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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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 * *   * *  *   ****     *     }
   **    * *   * }
  * * * ** ** ***  **** ** *   *****
}
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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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