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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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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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()
{
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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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****   *****  ** ***  * (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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}

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

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return 0;
}
answered by (-32 points)
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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')
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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)
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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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Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

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