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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#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()
{
 * ** *** * * **   **  ** a[100];
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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')
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**   *    **    **         *** * * *****
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 ** * ***    ** * *   0;
}
answered by (16 points)
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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
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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'
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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];
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***  ** ** * *  ****  *** *   * ***  *   ** ** *  *  **   *  *  = s[c] + 32;
 *    * * **** *       *        ** ***  if (ch >= 'a' * * *  *** **  ch     *  'z')
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  ** *   * ***  *       * * * **  * *** 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];

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    }

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

 **** **  ** **** *  * ** *  0;
}
answered by (-16 points)
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#include <stdio.h>
int main()
{
* * ***   ***  ** * * **** *** a[1000];
 ** **  ** *****  * *** ** *  ***  i=0;
** * ** **  *   **    ** *   *            *  
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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;
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 * *   *   * **  *   **     *  }
 **  *  ****  *  }
  ** *   *   **   *   **  *     * **  **
}
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#include<stdio.h>
#include<string.h>
int main()
{
    int i;
    char a[1000];
    fgets(a,1000,stdin);
  * **** **** **   ** * ** **  *******   *      * *
  *  *** ** *  ****  ***** ******* ****    ***  *  *** *
  **  **   *****    * * * *   *       **   **  * ** *    * *   **      ** * ** *    **  *  *    * && a[i]<='z')
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**   * * * * *  *******   * *     ** * * *** *** * *  **  *  *  ***   *    ** *   * *  **  ****  * ** * *********    ****** *     * *        
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**  ****    **     **  *** * **   ** ** *   *   *  ** *** *  ***  ***   ***  * * if(a[i]>='A' && a[i]<='Z')
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 ***        * * * ***  * *   * ** * * *** *** *** ***  ** *    *       * **   **  *
}
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