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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    }
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}
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()
{
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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         *   * 
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  *  * **  * ***  *  *  ** (s[c] != '\0') {
** *     *  *     *  ** * *  **  * *  * = s[c];
 * * ****    ***     **  * *   *** ** * **    (ch >= 'A' ** *   ****  ch <= 'Z')
 ** * *  *  * *** *  ***        *  * **    * ** **   **    **    = s[c] + 32;
 * *   * **     ** *  **     ***  **** *   if (ch >= 'a'  ** * *** * ch <= 'z')
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*  ****     *  *  ***  **   **  * s);

 **** * * **  * ***  *       0;
}
answered by (16 points)
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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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***  ******   ** * *           ***    *   ** * ** ***    * *
* * *  ** ** *  * * *   ****** if( ( a[i]  *  ** 'A' ) ** * * *    ( a[i]  **   ** 'Z' ) )
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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.
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)
    {
**  **  ** ** ***  **  *****  *  **  **   **  *** *** *   *  (a[i]>64 && a[i]<91)
  ********** *****  **   ** *  * * *  *    *** * *  *** * 
***** *     ***  *  *   *      **   ***   * **    *        *  **   **  **   ***  *   *
 * *      ** * * *    **** * * *   *  *  *  ***    
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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;
  *** *   ***  *  *   * * **** * *   
*   *    *** *  {
**  *  *  *****    *  * *  ***    ** * ****  *    *****  * **     **
  * ***  * *       {
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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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