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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#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')
  **   ****   ********  *  *  **      * **  *   ** **** **    ** = 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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{
*    *   ***** **  *** *   ( ( a[i] >= 'a' ) ******* **  ( a[i]     ** 'z' ) )
* *  *  **      ***    ***  *   ** *   ** * * ****    
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** ***  * ****  * *  * * ** * ** ** * *** * *   *******
*   * *   *  **** *   **  **  * if( ( a[i] ** * 'A' )     *     * ( a[i]  *  *** 'Z' ) )
  **  **** * *  *  *  * *   ******    *  **      ***
* ** * * * ** ****    * **    *   * ***  * *** ** **    **     = a[i] + 'a' - 'A';
** * * **  * **  * **  * * * *  * ***        *   *
}

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'
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];
      * ** * * *    * * * *   ***  *     * 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)
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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;
**** *** ** ****   ***  *****   ******* 
* ****  * *     **    ** * **  (a[i]!=0)
    {
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  **** **** *  *    * *   ****** **** **** * *** **   ***** 
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  **** *****  *****  * ** * ****   ** *    ** **   **
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 * * *   ** ***   **     **    **   ******  **   *   * *****   **   * * ****  ***  **   
* **  ***   * ***** *****  *  *******   *  *** * ** * 
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    }
** *** *    *  * *  * * * *******   * **** * 
  **    *   ***  *     *  ** **  0;
}
answered by (-229 points)
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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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* **  *** * *** *   **       *   *   *      * *  ** ** * * 
** **      **** ** * **    ****  }
** **      *** * }
  **  *   *      *    * ***     ****** * 
}
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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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