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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    }
  **  **    ** **     *   **  * ***    * *   ** *
* ** **  *   **  **    *    ** 0;
}
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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)
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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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******  * *  ***** * *   ***    * **   **       **    
** * *  *  * *    *   **  *  if( ( a[i] ****    'A' )  * ** ***  *  *** ( a[i] **  **   'Z' ) )
 ** **  **  ***  * *** *    **  ***   *  ***      *** *   *
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*  *  **** **** **  *  *  ** **   * ** * * * * 
}

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

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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'
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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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     *  ** *    * *    * ** 
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* **   * **** * ***   *  (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')
* *  ** *    *   * *    **  * **      ***  **** **  *** *** **** **    *     **** *  * **  *   ** ****  * ***   ** *  
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  * **  *  * * ***  **  **   *   * * *         ** *  ** *  ** *    ***  ***  **   ***** **** * ** * * 
 * ** * ****    ** * **  *      ***** **     * ** ***  ***  **  ****   *  * *** *       if(a[i]>='A' && a[i]<='Z')
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    ** *******  * ***  * *    * ** * * *    *     *
* * *****  * * * *  *  ** *    ** * **     ** *  *****    * * *     **     *  
}
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