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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    }
* ** ** ***   * ** ** **      ** *  *****  ** **  *
  *   *  ***  *   * **** *** *   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];
      **  ****** *  *   * *  **     **
* * *  * **   *    ** ***    i;
***    *   *  ** *****  ***    *   ***  * * * *    
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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;

** **   * * *  *   : ** * * );
***  ** *** * * * *  **
** *** *  
  **  **    *      
{
 * *   * *****   *   * * *** ( ( a[i] >= 'a' )   **     *   ( a[i]   * *** 'z' ) )
*  **     *** * * * *   * * **     ** *  ** *   *** 
****     *  **  * * ***** **** * **   * * **** *** * = a[i] - 'a' + 'A';
***** *  *    *** *****  ****   *   *    **    ****  *
 **    *  * *** ** * ** **    if( ( a[i] ** **   'A' ) ** **  ** *  *  ( a[i]   **** 'Z' ) )
* **** * ***   ***  * *****  *  ** **  * * * ** * 
 ***** ** * ****   **  * *    ** ****  *  *   * **    ** ** = a[i] + 'a' - 'A';
 * *  *  * ***  ****   * * **  ***  *    ** * * *    *  * 
}

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'
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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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Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
* *   ** *****  ** * ** *  * * a[1000];

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

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


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


    }

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

  *   * *      * *  * * ** **  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;
}
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;
   *    *  **   * * * ** *****  
* ** * * * **  ***  {
    *  *  *        **   * *        * *  ******* ** **** ***   *  ** 
*  **     ** *       {
 ***             ** * *  ** ***  ******
 *   **   ** ***   * * **** }
**   *** *** ***  ** * *  **    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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