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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*   ****   ***  *** **    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 ()
{
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 ** *    * * * * ** * ch, s[1000];

**** *  * *      * ** *  *** **  a **** * * ** *
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***  *   *  *** ****    (s[c] != '\0') {
**  *  * *** * ***   *  * **** **  *   ** * = s[c];
****  **  *  *  *** ** ** **** *  **   **  (ch >= 'A'   ** *  ***  * ch <= 'Z')
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}
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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}

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 ()
{
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* *  *****   **   * *  *  ch, s[1000];
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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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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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Case 2: Correct output
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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;

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 ****** ** **  * *     **  
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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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#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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