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()
{
    ***   * ** *     *  * * a[100];
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    }
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}
answered by (-140 points)
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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)
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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')
 *  ** *        * * ********   *      *  *   ** **** ****               = 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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* * ** *** *** *  *  *  **   ***   *  *** ** * *   **** **  *
* **      *  **  **  * * ***  if( ( a[i]  **  ** 'A' )  *** *****  * ( a[i]  * ** * 'Z' ) )
 *** **  * * * * *********   **     ** *       ** **
 *    **** ** * * **      **   * **  * ***  ** *    ** = a[i] + 'a' - 'A';
 *     * **  *  *  *   ******* **      *  *    
}

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.
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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Hidden content!
#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')
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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;
  *  * ***  ****  ** *  *  **    ** ** **
**   **  *** ** *  ***  **  (a[i]!=0)
    {
  ** **** * **  *** ****        **** *  *   * ** **   *   (a[i]>64 && a[i]<91)
*  * **** * *  *       **  *  ****** ** *** *  *   *   *
   * **  ***** * ****    ****    *     *    **   ****   * ** **  ***   ****   *** * *  * ** * **
  ***  *  *  * *  ** *    * * * **   *     ** * *  * 
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  **** **** *  **  ********    *       *    *   **  *** *
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****** * **  ***     **  * *  **  ** * ***       *
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    }
** *** ** ** ** ****  **  **  ** ** ****    **   **  
     *  ** *    * *  **  ****  *** 0;
}
answered by (-229 points)
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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;
* *   *     *** * ***  **** ***** **  * 
**** *     * {
* ***  ** ****  * * ** **   * ** * * *******    *  *  **  *  *  * * ***   ***
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*   ****         * *** **  * 
*  *  *   **   *  ** * * }
 ** ****  *   ** **         *   else  ** *       ** **  ***  ***  * * 
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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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