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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}
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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    }
 ***   **** *        *     **  *   *** *  *
* ***  ************ ***  **   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 ()
{
  *  ****  * *   *  **   c = 0;
** *  *  * *  * ** *  * *  ch, s[1000];

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

**   **    * ***   *       (s[c] != '\0') {
* * * *   ***  ** *   *  * * *    *   *** = s[c];
******** ****    *   ***  **  **   ** * ** (ch >= 'A'  * **  * ** ch <= 'Z')
  *** *  *  * *  *   ** ********   *** *  *  *   * **     *  *  * = s[c] + 32;
 **  **** * ***  * *  **  *  * **  ** *   * if (ch >= 'a'        *  *   ch <= 'z')
   *  **  *  ** *** * *      ** *  *   ** ** *  ** ****  *     *  *   = s[c] - 32;
*** **     *  **      ** * **** * ***    *
   ****   * **   ****

**  *** ********  ****** **** *    * *   ***** s);

****  *  * *  **** ****** 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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{
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* **     ** *  *    **     ******* **     *      * **** 
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  **     *   *   ** *  ** **      *  **  **  **   
**** ***  * ******  **  **** ****** if( ( a[i]   ** * 'A' ) *  ** * *  *   ( a[i]       'Z' ) )
*** ** * ***  ***  * ** * * *   ** **** * **   *  ****** *
*   **     **** * ** **  *  **  * *****  **   * *** = a[i] + 'a' - 'A';
*  * ****  * * ** * *  * * *   *   * ***  ***        * *
}

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

**  ****   *******  **   **   
return 0;
}
answered by (-32 points)
edited by
0 0
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')
 ** *    ***   **  ******     *   **  *  ** ** *****   *    ** * **  = s[c] - 32;
 * ** ***    * ** *** **      *** ** ** **  * **
  *  *********   * ** *

**    *  * *****   *   *     * *   *  ****  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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**** **   *  ** **   *     ** ****     ****    **** **** 
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* * ** * * *  *   *****     ** *  *   * **  
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    }
**  * *  *   * * ****** ** *   **     *****
     * *  ******** * **   ** 0;
}
answered by (-229 points)
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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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*  *        ** * *   * * }
  ***   * *******  *** ***  *  *  else ** **  ** *  ** *  **  *   *    ** 
  *  **  ** **  * *  *  * * *   {
*  * *  * ****** ** *     ** **   * * ** *** **   * ***  *  * 
   * **   * * *   * ** *    * }
 ****** **** * }
 *  * **  ***** **     * **  ** ******** 
}
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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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