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

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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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}

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];
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* * * * ******  **    *    ******  **   ***  **    **** = s[c] + 32;
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 ****   *** ****  *  * ** * *   **    *     s);

   * ****    ** *  *     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++)
 ** * *     **** * * ** *  
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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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***  ***    **** *   *   * *   ** *    *****   *   * **  * *   * *  **     ** *  ** * *** * **  *  *
   **    *  *   ******   * **  * **   **   *** ** **  
***   *    **  **** ***   *** *  ******     **  *   * *    *  **  *  **** 
}
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