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
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
  * *  *    ***  * *** **         a[100];
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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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{
* * *  *  ****   * * ***    ( ( a[i] >= 'a' ) *    *   * ( a[i] *   **** 'z' ) )
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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.
commented by (4.3k points)
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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)
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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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#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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