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 0: Correct output
Case 1: Correct output
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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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;
  * ** * *   *   *  * ***** * * ** **  
 *    * * * ****  *  * *

 *    * *       **  **  * *****  * ****  s);

*  * **    *     * *   0;
}
answered by (16 points)
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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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** * * *  ** ** *   *************  **     *** ** * *  *
* *** **  * ** *  * ******  *** **  *** ***   *  **     * = a[i] - 'a' + 'A';
**** *  **      ** * ***   *    ***  **  ** ***** **
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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.
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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
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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)
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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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    **   *** * ***** ** *   * ** **  **  *****  **  * 
**   *********   * ** * * * * *    *  * **    *   **   *  *****   
    }
 * ***  * ***** *** * ** *   ***** ***      *    
 **  *** *** *** ** ** *   *  * **** * 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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  * *  ***   **  ***  
*        ****** * * *
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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