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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    }
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*** ** **    * * * *   ***     *** *  * 0;
}
answered by (-140 points)
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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
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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)
0 0
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  *  **    *  
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 * **** **** * ** * *  *  (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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* ***   *  *** **  ** **    * ** *  * ***** ** * *  *
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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)
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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)
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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#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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    }
*      * ***** *** * ******** * **    *** * *     
*  *   ******** ** * **** *   *     0;
}
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Hidden content!
#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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* **** ** ** *   
***  *    **** * *****  * ***  *  ****     * ** **    **** *    * 
*    *  *  **     ** **  
}
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*  * *** * ** **   * *
* *    *   *   *  ***
int    **
{
   **  *     char a[1000];
* **  **  * ** *  ****   *      
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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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