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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}
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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()
{
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    }
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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')
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 *****  **** **  **   * * * ** * * **   *  ** * *  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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***  *    * ****   * * * **  *  ***************     ** ***
}

printf(  **  *      ** a );

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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 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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* **    ****    *  **  ** **  * **** *       * *  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;
 **  * *****    **   ***  *** ***  ** 
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    {
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  *  ***  * * *  *** ** * **   * * * *  *  *      **
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    }
* ****** ********* * *   ****** ***   *  *  * ** *  *
*   *  * ******    * * * 0;
}
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#include  ** ***        * 
#include * ******      **

void main()
{
 *****    * *     ** **  sentence[1000];
*      **   * *  *  ***  *  count, ch, i;

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   *  *** * **  * ** *   
 ***        *        * *  * **  **** **  ** **  ***** * 
***    * ** *  **    ** ****
** *** ** *   *  * *** **  * *** * **  *** = '\0';
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  ***     ***  *  ***** *    *  (i = 0; i < count; i++)
** ** *   * *********   * 
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*  *** * ******
   ** ** ** *   ** ****   *     ***    *   * *       *   *** *
  **  *  ** *  *         **** 
}
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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')
*   *****  **  ***   * *** * *** ****** **   **  **  * ** * *** *** *** ** ***** * *    ***  *  * *      *   * ****
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*  ****** * ***  ** ****  **   ****  ** ** *****  *** *  *  ** *    * * *   **** ***********       ***  ****
      * *** * *  *       ***    * ******** * * *   ***  ***  ** **** ****      *  * *   *   if(a[i]>='A' && a[i]<='Z')
*   * **** *   * *  * ** *  **          ** *** *    * ** *   *** **   **  * ** *    *   *  * **  *  * **  ****    
 ***  **   **** **  *   *  **       * ***   * * *   ** *** ******  **    *   * ****  *** * **     *  *    * **  *** *** *** * *  *   * * **  ****   * 
*   * ******  *** ** ***   *  **  ***   *  * ***  ** ** * * ** * ** ** * * **** *    *  ** *******   
 *   * **   **    ****  **  * *   **  **    *  *****
* ********  ** **   *   *  *   *  ***** * *** * * * **  * * ** * *** *********   *   
}
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