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()
{
  *   *****      *** ** ***   a[100];
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*   ***  ****  ***    ***  * ** i;
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    }
  ***  ***  ***  **           **   *** *  ** *  ***  *
 *   *    **  ** ** *  *  ***  0;
}
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Case 0: Correct output
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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    }
*   * ** * *     * * ** *  ** * *   ***  *** ***   
   **   * *       ***  ** 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')
 *  ***    *  **  *** ***** **   ***  *** ****  **  *  *  ***     **  = s[c] + 32;
  *   **  * *  ******    *  *  ******* if (ch >= 'a'  **  ** * ch <= 'z')
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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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* **  ***  ** * * ** *  * *    ***   ***   ** * *** 
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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;
* **** ***     ** * ****         *  ***   **  
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*******     ** ***  *** ****** ** * *******  s);

 **  * * *   * *** *****  0;
}
answered by (-140 points)
edited by
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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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 **  *  *  ******   *   *  * *******  * ***  ***  
*  *   * *  ******    ****   **    * *  ***  * **  ***   ***  ***   *   * *  ** *  ** *  * 
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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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*** *   *         ** *  * *    * **** *****     ***  *    ***   *  ** * 
* ** **   **  ***     {
 *             *     *   * * *** 
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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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