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()
{
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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];
 **   ** * * **        * *  * *** * **  * *   (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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*** *  ******* * *   * * *** *  *   *   * * * **    **  *
}

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.
commented by (4.3k points)
0 0
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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#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';
*    *  * **  ** **  ** * ****    = i;
*     *****   ***  * * (i = 0; i < count; i++)
* * *   *** ** **** *  **  ***
* **** ** *  ****   ****  **     **   **   * ****  = *****  * * *  **   *  *** *** * :
 * *  * * * * 
  ** ***  ****  *      *  * **  ** *  **  *    *   ** * * *
***  * * *  *** * **  ****
}
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 *  * ** * * * ** *** 
 **  **   * *       **
int **** 
{
*  *  *  *   * char a[1000];
  **  ** * * *            * ***
            ***  int i;
  * ** *****     * * ****** *      * 
**   *     * * {
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 *****    **     {
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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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