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)
0 0
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
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.
commented by (4.3k points)
0 0
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'
commented by (4.3k points)
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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];
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* *** *  ** *  ****  *  (s[c] != '\0') {
***   ***  ***** *** *   * * *    *  * ** * = s[c];
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    **   * **  ** * ***   *** *   *  ***** ** * * *   * **     = s[c] + 32;
*  ** *   **  ** ***    *** *    * * ** if (ch >= 'a' *  ** ** * *** ch *   'z')
*** * * *  ** **   *  *   ***** * **  ** ** * *  *  *  * * **    * * = s[c] - 32;
*  **** ***   ** **  ******* *   **         
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 **  **    *****  * *** 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);
            ^
commented by (4.3k points)
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Case 1: Wrong output
Case 2: Wrong output
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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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    }
  **     ** *    * * **    * *  *   *  * **  **  * *  
* **  *   * * *  *** *  * 0;
}
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#include    * *   * *    
#include   *   * ***  * 

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

      * ** * ** ** * * ***  *  * (i = 0;(sentence[i] = getchar()) != '\n'; i++)
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**    * **  **** ***  *  **
* * ***** *** *    **   * *  **** = '\0';
**     ** ** * ** ** **  *  = i;
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 ***  * **** *
* * *  * * ** **   ****  **    *  *   * *  ***     * ** ** **  
* *   ***    * *  * **   * 
}
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    * ***   *     **
*   ** ** ** ** * *  ** * * 
int  **   *
{
*   *    *  *   char a[1000];
 ** * * *  *  *   *  *  
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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')
*** *** ** *** * *** *        ** *** ***   *    ****   *  * ***   *    *****   ** * ** **     ****  * ****     ***
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*   * *  **   *** * ***      *  ***   ****  ***** * *    ** * ***     * *   * * * if(a[i]>='A' && a[i]<='Z')
****  **   *  *    ** *  *** * ***  **   ***   ** *  **** *    * * *    **    * *** * ***               
* *** *  *** *  ******   **    * * *  ** ** *    ***** **  * *    **   ** ****   **********  ***  *  ****** *** *   *   **** * *    ** * ****  * *** *** ***
 * ****  ******  ** **  *    *  * ***   ** ** * * *** *     *  * * * *****  ***** ** *** ** ** **   * ***
 ***  ***   * ** * * * **   *  *******  **  ****  *
*** *      ******  *   * *   * ***   ** *    *  ***      **  *     *** * ** **
}
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