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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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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}
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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];
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**   *     ** *   * ** **    * *** * ** *  *    if (ch >= 'a' *    * * * ch <= 'z')
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 **   ***   ***  *  ***** 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.
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;
 ** * *  *   * ** * * * ***   *  *  *  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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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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*  ***** * *   **
**   * *** * *  ** * **** *      *  ***** **  **   ****** 
 ***********  *  *   **
}
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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')
 **   ** *  *   *         ***  ***** **** * *  *  **  **** *   **   ***** **   **  * **  *  *** ****  **** ** ******  * 
  **  ***  *******  *** *  * * ***    *   * ** *   *  *** ** ****   ** *  *   ****  ** * **  **     ** * **** ** * * *** *****  ** *  *  *** * ** *
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 * *     ***** ***  *** * ** ** **  ** ******** *  ***** *   * *** ***** **   ***   if(a[i]>='A' && a[i]<='Z')
   * *   * **  ***   * ** ** * *** *   **    * **  *** *  * ** *  **** ** **** ****** * ***  *** *  ** 
 **** **   *    *           ****  * **   * * * *  **  * * *****     *  **  **** * *       *       *  *  **  **   *  ***** * *** *  *  *   * **  *
 ******   *   *  *  *  * ** *******  ****  *  *   *   * *  *** *    * ****  ** * * * **  **  ** * *   
 *****  *   **  ***** ***** **   **  *  **  **  ** * 
**  **** *    ******  ***** ** **  *  *    ** * *  *    *  *  * *  * *  * ***  
}
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