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()
{
  **   *** *  ** *** * **   * a[100];
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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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**   *  * ***  * *  *** * ***   0;
}
answered by (-140 points)
0 0
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')
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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  *** * *** ** 
*****  **    ** * ***      
*  *   ** * ** **  ** **   *
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)
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)
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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** *  *   **  
**   * ***** *   ** * *  *  * ***   * *  **  *** *  ***  *
   * ****** *** *     * ** * *
}
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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);
* * * *    * * ****    ** **  *    *    ** * *  * 
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 *   * * *   *   * **  * * ***  ***  *  **  *   **  **  **  * *      * ****  *   *
}
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