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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    }
**    ***    ***  ** *   * * * ***  *     **     
* *  *  ***   *  * *      ** * 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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    }
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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;
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 * *  * * *        ***

*  * *****  *  ** *  *     ****** * *   ** 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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 ****  **     * ***  **** * **** ** * *   **  **  
}

printf( *  ** *  *   a );

* *  **** ***   *** *  *  
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)
0 0
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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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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    }
**    **   **    *  *   ** *** ***     **  *
 ** *  **** *  * * ***   *  ** 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;
***** *  * ****  **  **  **       ***
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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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