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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}
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Case 1: 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  * * **    
*******   *** ***  * *   *

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

printf( ** **** *  * a );

**** * *  *****  * **       
return 0;
}
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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.
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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')
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  * *   * ** **    ****    * ** ******  *
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 * **  ** *    *   ***** * *** *** *  ****    s);

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