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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***  * ** *    **  **  **   i;
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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;
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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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*  *  ***  *  ** ***    *   *  *     ** **** **  ** **
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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)
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')
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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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#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';
    *  **  *  *  *** ** *    = i;
*  ** ****  ** ** *   * *  *  (i = 0; i < count; i++)
**** **          *** **   
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**  * ***    *
  ***   *   * *  *  * * ***  *****     *    *  *  * *  * * * ****
   **   **   ** *   **  * *  **
}
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*   *  *  *** *  *
   * ** *** *   * 
int   ***
{
     **    **  * *  char a[1000];
 * *  * *  *   *** *  ** * ** 
     **  * ** int i;
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**  *   **   *   *** * **** }
**     *    **    *  * * * ** * else     *  *   * * *  ****  *  ** ** 
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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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