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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  ***  * *  * * *  ******  * * i;
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    }
 *  ***  ** *      **   ***    **    ** * ** ***
 *   ****  *** **********  *  * *** * 0;
}
answered by (-140 points)
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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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      *   *  *** * *   *   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
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.
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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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Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

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

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

*  ** *  *    ** *****  * i;
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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)
*  * **** * **  **  ** *** * **  *  ******   * *  *****  
**  *  **  ****   * ****** ***  * * * *******  * **  **   *   *  *******     ** 
   *      *   *  *         * *   *  * *** *  *  ** ** *
 *     *  *    *  *   **   **  ** * * * * ***  * if (a[i]>96 && a[i]<123)
 ****  * * * * **********  * ** *  * ** * * ** * * ** *****
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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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