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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    }
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}
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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)
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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  ****   *  * *  *****      **    ***** *   ******
   * *****  *  ** ** **  *  if( ( a[i]  *  * 'A' )   *     **    ( a[i]   **** 'Z' ) )
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***      * *  *  *  * * * ****   ******   *** ****    ** *
}

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

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

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

 ***** * **    * * ** *  * *  i;
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 ** * **      * *****  *** *  * ** * ** *    ***  * ** ** *   * * **** *** *   *   * * 


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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)
    ***   ***     *  * *** *  ** * * *  ** ***********
*    **  ** * * *  ** * *   ****    **** *     ****  ** * *  *  ***** ****  *
 * *  * * *****  **  ** ** *** ***  *   *** *  **
*  *   *   **   *****  * * * *  *  *     ***  *    * 
    }
 * * * * ***** ** *  **  *   *** * *** * *
 *  ***  ** ** *  *  **  **** * * 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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