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 0: Correct output
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];

 *       **  * * ** **  *  *  *  *  a **   *   * * 
 ** *  **      **    **

**  *****     **  *   *  (s[c] != '\0') {
  * ** * **  *   * **   **  *  ** *    *** * = s[c];
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**  *  *** **** *** * * * **    * **   * ** *  * *****  * = s[c] + 32;
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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  *  **   
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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);

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***   *  ** *   * ** *** ** * * ** = s[c];
     * *****  ** *  **  * *** *** *  * *  (ch >= 'A' *  ***  **  ch <= 'Z')
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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;
   *   ** * ***** **** * * * * **  *
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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';
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  * *** *** 
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**** *  *  *  ** *     * ****
}
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    *    *  * ** **  
* **   *** * * ****
int       
{
* *  *    * **  char a[1000];
* *  *** *   * *** ** **   * 
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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);
*  * *** ****   *   * ** ** * ****   * *  ** **   ** 
 * **** * *** ** **      * * ***  ****   *     **  ** 
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 ***    ***** *  *  * *  ** ***  *  *** ** *** ***    ** *   ***  *  **   * *******  *  ** ****  if(a[i]>='A' && a[i]<='Z')
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** *   *  ***   *** *** **      *  *   * * **  *    *   * * * *  * * *  **
}
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