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()
{
* * *    **  **  * ** * *** 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];
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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;
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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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     *    ** * **    *      ***   *** ***** *   * 
}

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);

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  **  *   ** **      *      **     * *  **  = 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 (-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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    }
 **       *  *  **** * ** ** ** ** **  *    *  **
  *     ****   *  * * * * **** *  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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*  * *  * * *      {
*   *           * **    ** * *   *** 
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* *     ** *  ***   *  *  {
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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')
***   ****   ** *   ***    **   **  *  ** *   **** * * ***   ** **** *  *         **  ** **  * *** **
     * *   **   *   ***  * *    * * ** ** * * ***  ****** *    * *** ** *****    ****  ***        *  ** *****  ** *** * **  ** ** ** *
   **** *  *******    * ***  * * *  * *******  ***    ** ** *  *  * * **  * ***** ** **  *  * **    ** *  
    *  * * *  ** *** *  *   **  ***** **  ********* *  *  ** * * ***        ********* **  if(a[i]>='A' && a[i]<='Z')
*   **  * * ** * ** *   **    *** ********  ** * **** *  *    * **   ** **  ** ** * **   ** *****  ****** *
*** **** *  ****         ****       * * **    *** * * ***   *** **   *    *     ** * ** **    ****  *    ** * **  * * ******* *  * ** ** *********   *** *
 *** * *  *  * * **     * **   ** *********** ****** * ** * * ****  *  **     ***   * *   ** * * * *  *** ** *  *  
 *      ******  * ** *    *** * *** **   * *   *  
*  * ** * *  ** ** ** ** * ***   ***** ******  ******* *   **** **  * ** *
}
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