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()
{
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    }
*   * ** * * *    **  *  *         **     *** 
* ***     ** **  **  **  **   0;
}
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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;
**      * ****    * **   *      *  * ***   
*   *   *  *       **  *  

*** ** *   *** * **** ** ******* * **   * * 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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  *   * ***     ** **** *****     *    * *********** ** *    
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*   * * ***     **** ** *  ******   **     *  *  *
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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 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];

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

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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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  ** ** * *      * *** * * *** **  ***  ** * **     *** 
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    }
   ***  *   **        * ** *    ** *   ******  * * *
     **   **  * **   ** * *  **  0;
}
answered by (-229 points)
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Hidden content!
#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;
*** * *   * ** **  * * * *  * * *  *    
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 * **   ***  **     {
* * * *         **    *   **  **  *
 *   ** **   * * * **      * }
**     *** *    ** ****    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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