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 0: Correct output
Case 1: Correct output
Case 2: 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;
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    **** ***  *  ****

*    **** * **      *** *    ** *   *  *   * 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   ***** * ****
**** * *   *  **  *
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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 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;
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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;
   * *  *****   * ****** *    ****  *  *
   ********** *     *   * *   (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++)
   *  ** ** *** ** ** *  * *   *
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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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