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 0: Correct output
Case 1: Correct output
Case 2: Correct output
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
     *   * **  *    ** *    a[100];
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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];
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*  ***    ** *  *  **** *  * * *  *  *      **   * ***** = 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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    ***** ***************** ** * *  **      *  * * 
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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.
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'
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);

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*  **** ***** ***   **** ***   *   ** * * *      = 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;
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 ** * *  **** 
    **  * **  ** *  * * **  *  ***   ***  ** **      
 ** *********    **  *  **  *
}
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 ** **    *  **** * 
 ***      *   *   *  
int   * **
{
  ****    * *** char a[1000];
  *** * *   **   **  ****     
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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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