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;
}
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Case 0: Correct output
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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    }
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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;
*** ** *****  * *  *  *   **   *** ** * *  
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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      * * **  ***
*    *   *****  ** *   
**  *** *  * ***   **   * 
int ***   
{
char a[1000];
int i,n;

****  ** ** * * *   * :     *  * );
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*  **    
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{
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*   ** ****  ****** ** ** * *  *  ****     **   
*  * ****   **  ***   * ** *** *   * **  * *    ****    * * = a[i] - 'a' + 'A';
 ** *** * *     ***  **   ****    *   ***  *  *    ** **   * 
 *         ***   *   * ****  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)
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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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#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)
    {
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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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       **  
 **  * *  ****    * * *  **    *  *******  *****   * * ***  *** **
 ** *  **** *  *    *  *    * 
}
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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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