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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}
answered by (-140 points)
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Case 0: Correct output
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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}
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;
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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 );

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return 0;
}
answered by (-32 points)
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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];
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  ***** *    *       ***   * ** * ***  *    *  * ** ****** ***  = s[c] + 32;
**  *  * * ** *    **   ***    *** **  *  * if (ch >= 'a'   *   ***    **  ch    **** 'z')
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* *     *  * *** **  

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 **  ***  * ***   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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Case 1: Wrong output
Case 2: Wrong output
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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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    }
   *** *   ***    **   **** *   * **  * **** *  
  * *** ***  **      ** ******  *  0;
}
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#include *   * * **** ** 
#include     *  **    *

void main()
{
*  *    ** ** **** * ****    *   * sentence[1000];
*   ***** ***   *  ***   ***  count, ch, i;

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  * * *  * * *  *  * * ***  
   * *   * **  * *** **    *   *     = '\0';
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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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*****      **         * *  {
* * ***   * ** *  **     * **  **      *    ** **   * ** 
** *  ** *  ** * *  *      ** }
* ** *   * *   }
  ** *  *   ** ** * ***  *   *   **    * * *
}
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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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