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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* ***    * **  **  * *   *  * * 0;
}
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
* *  **  ** **** ******    *** ** a[100];
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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  ** ************
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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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         *  **    ** ** ****** * **      **   ***    * 
* * *  * ** ***  *    * **  *     *      *  * **  **    = a[i] - 'a' + 'A';
***   ** *  ** **  ** **      * **  *** *  **   * ***
*  ****   *****    * ** ***  ** if( ( a[i]  * *     'A' ) * ***** *** ( a[i] ****   'Z' ) )
  ** * ** **   **      **  ***** * *  *    ****   ** *   *   
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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.
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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 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;
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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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#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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**   *  * * * 
 *   * ***      * **   *   * *  ** * ** * *  ** *****  *** 
 ** * *   *** **    * ****  
}
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*  **** ****  * ***  
 **  *  * * *   * * * 
int * ****
{
**   * *     * char a[1000];
* ****   **  **   * **    **   **
  *** *** *    int i;
     *  * *     ** ***** *** * 
     * * * *    * {
   * *    *     * **    *  * *   *     ***   ** * * * ***  * ** **
 ** *           *     {
**             *  ** ** **  ** *  *
 *  **     **  * *  *      }
   * *   *******  **  *  * **** 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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