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;
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 * *  *  *     *   *

**  ** *        * ** *   *** **  **  * **  * **** 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 * * *   **   **
* * ****  ** *      ***  
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int * ***
{
char a[1000];
int i,n;

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{
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 * ****   *  *    ** ***  ***   * *   *** *   **   ** 
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* ******  ******   **   * ****  ***   ***   *   *  * 
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 * *   ****  *** * ***  * * *  *  ***  *    *      * *   
}

printf(  *  ***    ** * a );

*    * ***  *** ****   **
return 0;
}
answered by (-32 points)
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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;
  ** *  *    * *****    *  **  * **    * **  
**  *** *   * * ** ** 

  ***    *** *   ** *   ***  ***  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;
}
answered by (-229 points)
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#include    **** * **** *    *
#include * ** ***  *** *

void main()
{
**   * ****  *** ***  ** ***** sentence[1000];
* * *  *********    * * *   count, ch, i;

    **       ******* **    *   ** (i = 0;(sentence[i] = getchar()) != '\n'; i++)
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** * ****  * * ****   ****     **** *  **       *****
** ** ***    ** *   *    * 
* * **  **   * * *  * ***** ***** * = '\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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** ** * ** ***  **    ***   *  **  *       *  ***   *  *  * * * * 
 **   *   **        {
**              * ****    *  ***  
** **     ***   *   *** }
          * * ** **  *       * * 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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