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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    }
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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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    }
  **   *  **    *          * * ** **    * ****    *
** *  *     * **** *  * 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;

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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.
commented by (4.3k points)
0 0
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;
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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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#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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    }
*     *** *  * *** ***** *  *  * * ** *    *   
 * ** * * *    * *** *    *  * 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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