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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  **  ******  *  ****   ** 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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** ** ** **  **    ** * i;
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    }
* *** ****  * * * *  * ***       ** **  * ***** ** **
 *****    * * *   ***  * * **  *  * 0;
}
answered by (-140 points)
0 0
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[i] * **** 'z' ) )
** ****  *** * *  ** ***   * *  ***  *   ****  ** * ***
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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.
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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'
commented by (4.3k points)
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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];

** *     * *  ****     ** ** *  ** **   ***  

   *     *** * *   ** ** * * * 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)
**** **   ***  **** ** **   *  ** **    * ** **     *  
    * **   * ***  * ** ****     *     **** *** *  ****** ** *  ** *** *** *       *
**  **  * **     **  ***** * *  *****  ** *   * *
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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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#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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