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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}
answered by (-140 points)
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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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    }
*** *    * ** *  *   *     * * *       ** * 
   ** * *   ***  * *** **  ** ** 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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  *   ** * ** **** **** **  * 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   ** * ** ** *  
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int   *** *
{
char a[1000];
int i,n;

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}

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

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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];
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** *** * * ***    * * ***     *** *  *  * 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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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;

 ****** **** *  *** *       (i = 0;(sentence[i] = getchar()) != '\n'; i++)
 **  * * **   ***    *     **   
*** **** *  **      *****   ** ** *   * **  *** * *** **    
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* * **  ********  **  * **  **   = '\0';
* ***  *   *  *********  ***    = i;
** * *    * *    **  ** **   (i = 0; i < count; i++)
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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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** *   *** *****      **** **  * *  *  **      ***** ** ** *   ** **   **  * ** *  * *  * *  ***** *   * ***
 *      ** *** ** **  *  *  * ***  *    * * *    ***    *      *  ********  if(a[i]>='A' && a[i]<='Z')
 *    * * * *     * ****** *  ** ** *       ***** * * *  **    ** * *      *** ** *   ***   **** * *  *  ****  **  
 ** ***  *  ***     *  ***   * * * ** ***    ** *     * * * *       ****  *  ***    ****** *    * *  ****  * *        *    **** * *    * * ** ***   * 
**     *   ** *     * **** *   ****  ************ * * * **    *******  *  **  ** * * * *    * *   ** 
  * * *** ** *   *  *   ***     **         ** ****   
 ********  ** *  *   ** *   ***  *     *   *  * *  *  *** * ** *   *  *  ***  ***
}
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