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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* ** *** ** * ***  *****  *** ** * 0;
}
answered by (-140 points)
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Case 1: Correct output
Case 2: 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')
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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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 *  *  * **** *  **  * *  *** ** * * *  * ** ** ***  
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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'
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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')
   *  ***  ****** *  *** ** *  ****   *****       * **    * = s[c] - 32;
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  * **        *  *

*   ****  ** *     *  * *   * * ***  *  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;
}
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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;

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