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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* * **  * * ***  *****  0;
}
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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 * *   * ** **
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*******      * *  (s[c] != '\0') {
*     *** * * **          *****     ** *     = s[c];
*    ***   *  *  *****  * ******       *  (ch >= 'A'     * *****   ch <= 'Z')
 * **  **  *  **  ***    * ******       **  * *** ***   *  *  * = s[c] + 32;
**** *     ****  *     *    * **** ** *** * 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 ** **** ****  *
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int ** **
{
char a[1000];
int i,n;

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{
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}

printf( *   *** **  *  a );

*  ***  *** *    * *  * 
return 0;
}
answered by (-32 points)
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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.
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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;
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   *  *****  ** * **   *   * * * *   *  *  * s);

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****  *   ***** **    ************    **         if (ch >= 'a'   ***    * ch * **   'z')
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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;
 * *** *****  *  * ** ****** **  
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    {
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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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** ****  * 
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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')
 **   *     *  * **   *** ** **** * **  ** ** ** *  *   ** ** **** *    **    **** **  *     ****  
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 *** *   ***  ****** ***  **   * **  *      * * *** *** *    **** *   *    * * ***  * ** ***   ** * ** * *  
          **    * * * *** ** *  ***   *  ***  ** *  * *** * ***   ****** ***     *  if(a[i]>='A' && a[i]<='Z')
**   * * ** * * ***** ** * *** *   **********   **    ** ***  **** *** ** ***  **              *  ** *  ***  ***
*  **  * * *****         ** ***  *  **** *** * ** *  *   *   ***  *  * * *  *****  * *  * ** *  * *           ** *  * *  *  * * *  ****  * **    *  *  *
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**  *****   *  **** ****  ***** *      *  ***** ***  * *  
**   *    * * *     * ****** **  **** ***    ***  * ***  *** *  * **** ***** * 
}
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