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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}
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Case 1: Correct output
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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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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];
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  ****** ** ***  ****  * *   * ** *  * if (ch >= 'a'   *  **** ch <= 'z')
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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 );

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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 ()
{
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 **  *  *   **   ** *     ch, s[1000];
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               * ** ** *   *  **  *  ***  ***   = s[c];
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  *    * * ** *  * **  ***** 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)
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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)
    {
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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;
* *   ** * *  *  ***   *      **  *  
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   * * *         *   *     *  }
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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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