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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}
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];

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 ******* *  **     *  ****

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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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}

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.
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];
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 ** **  * *  * *        **** (s[c] != '\0') {
  ** ** ** *  *  * ***  * *  * *** * *     = s[c];
***  ** *        ** * *   *  ***   *   **   ** (ch >= 'A'    ** ***** ch <= 'Z')
 *  ** **** **       ******   *****  **  ****  * *** *   = s[c] + 32;
**  * *****  ******     * * *** *   * *   * *    if (ch >= 'a' * *   * *    ch  * *  'z')
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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;
}
answered by (-16 points)
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#include <stdio.h>
int main()
{
* **  *********     *  ***   *  a[1000];
*  * ***** *    *  *** *** * i=0;
* **  * ** *  **  *    * ****  *  ***  
** ** ****** * *       * ***   (a[i]!=0)
    {
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    }
* ****  *  **  *  * **  **    ***  * ** *  ** *   ** * * **
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}
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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];
*  ***   *  * ** ** ** * *    * * 
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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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**  *** *     *  *     * *  *  ** ** *  *   * *   * *  ****
***** ***** ** * * ***  * *  * ***  ***     **  * * **  *        *  ***   
}
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