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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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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** *** * *** *** ** ** **   * * 0;
}
answered by (-140 points)
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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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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)
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')
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* * * *  * **   

 *  ** * ***     *** *  *  ****   * 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;
* **    *****   ** *  *  *  ****  *  * **
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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++)
 *** ** *  ***** *  ** *   * 
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 **  * *** *  * *     *  * 
       **  ***  * *  ***    *****   = '\0';
   ** ***    *** ***  ***   = i;
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** ** * *  
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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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******    *   * ***    * *  **** ******* * **  *   **** **    * * *       * *** ***  **    * *   ***
** * * * * * ******  *  *     ***  ** *  ** *   ** *  
*  **   *  * *** ** * * ******    *    *  * * * **  ***  * **   **         * *   * *   * 
}
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