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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    }
*  **   *  * *      *      *** ** *   *  *   ** ***
*****   ** *****   **    *     *  0;
}
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()
{
    * **  *  *    * ** **  **   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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 **  **   *   * ***  ** * * ***   * *    ** **** *  *       *
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 **   * ** *** ** * *   ** * ** * * ** *   ************
}

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

      ******  **  * * ***  * 
return 0;
}
answered by (-32 points)
edited by
0 0
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];
   ** ***    * ** ** ** ** * * ** **** *   (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);
            ^
commented by (4.3k points)
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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;
**   * ** **  *    *     * *** *  *
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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++)
** *****  ** ****     **** 
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* ** **   **** ** ****         
*   *****   ******   *  *   *    ** = '\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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* * **    ** * {
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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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