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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*      ** ** * * ** *       * *  * 0;
}
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()
{
**  *** *  ** * ****  * *  *** a[100];
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    }
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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 * *    ***  **
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** *     *   *** * *** (s[c] != '\0') {
    **   ***      *   ******  * *** ****    = s[c];
***** *  *** ** * **  *     **  *******    *** *   (ch >= 'A'  * **  *  **  ch <= 'Z')
  * *   **  *  **  *** *  * ** *   * *   ** ****   **    ** * = s[c] + 32;
   *****  ***   *** * ***    ** * ****  *     * if (ch >= 'a'   ****   ch <= 'z')
  ***** * ** **** *  * ** ** *  *      ** ****  * * * **  ** ***   * * ** = s[c] - 32;
***** * *  *    ** *  * * *  *   **** * 
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**    * *       *** ** ****   ***  ***  * *  s);

 *  *  ***   *     *  *   0;
}
answered by (16 points)
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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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***  ** *  *  *  * ** *** *   * ****  *   *  **** ** *
}

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

* *  * *   ** ****   **
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.
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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'
commented by (4.3k points)
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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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***    * ** * *  ** * **     * * ** * **  ***
  **    **** *** **** *  

* * ****  * **       **       ** *   * *     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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#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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    }
  *** *****  *****     * *     ****  **  ** 
****   * ** *  *** *       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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#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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