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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    }
* *   *** **** *  * * *** **  ****   * *      *** 
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}
answered by (-140 points)
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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()
{
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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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**    ****  *  * **  * 

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 ***    *    *        * 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 );

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return 0;
}
answered by (-32 points)
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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.
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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];
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     *   * ** ***    * (s[c] != '\0') {
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* *    *   **    ****    *   *      **  (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
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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Case 0: Wrong output
Case 1: 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;
*  ***   *     *      ** **  * *** 
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    {
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    }
  *******   ** *  ******** *  *  ***  * *   *      
 ** **  *      * **   *   0;
}
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#include       **   ***   *
#include  *  * **  * *  

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

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  ******  ***** *    *   *  
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***   * ****      ** ** ***  ** * * = '\0';
* ** *    *   *   *  *  **  *   = i;
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**  ** * * *       * **  ***
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* * ****    **
 ***    ** *  ***  * ***** * * **  ****      *      * **  **  * 
* *  *  **** *    * *   *
}
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* ** * **  * *** ***  *
* **    ** * *** **
int ***** *
{
*    ** * **** * *   char a[1000];
** **  *       **** * ** *         * 
*   * * *  ** * int i;
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* ** * *   ****   * * * *  *  ** {
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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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***  * ** *     * * *     ******** *  **   *  *   
** * *** *  *  * *****      ****    **  *  * * *  * *  *** ** *   ** **  *  * **
}
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