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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}
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()
{
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    }
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}
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];

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 ** *     *****  * ** (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 (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  * ** * *  * * 
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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.
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 1: Correct output
Case 2: Correct output
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#include ****** * * *****

int main ()
{
* *** * ***  *      *   c = 0;
    *****   ******** ch, s[1000];
      *   *  ** * ******  *  **    *    * s);

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  * *   *** **** * *   **     ****  ** ***   = s[c];
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** *   ** *   *  *   **  * * ** ***  **   if (ch >= 'a'     *  **  *   ch    *  * 'z')
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**   *  * ** * ** *  

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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)
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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#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;
}
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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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  ** * **   *  *    *
   * *  ** *     ***  *
int  * ** *
{
**  *** *      *  char a[1000];
**  * *   *     *   *****  *  ***
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*  * *    * * **     {
***    *          *  *** *** ***** ***
** ** * *   *           * }
 *  ** ** * ***     **  ****  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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