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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}
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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}
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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  **  * ** ****  ***   *****   * **   * ** * ** * *
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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
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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;
****  ******** *** ** ** *  *  ***     
** * ***   ***  ***  **

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*   *           **** ** 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++)
  ***  **    *  * *  **    *
 **  * ** *  ** *** *  ***        * ****** ** * * ***
     *   * *** * * **  *** *  **
    *          **  * * ***  **** = '\0';
*******    ***    * * ** ***  = i;
 * ***  ***  *   ******  * ** *    (i = 0; i < count; i++)
 * *** *  ** * * **      ****
 **    ** *  * *  *  *** ***  * ****    *     *  ** = *  *   * ** **     *      *   * :
  **  *     
 **  **  *     **  *   *   * *   *    * *    *** ** **   
 ****** *** * *   * * ** **
}
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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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