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)
0 0
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    *** ** **  
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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];
  *   ******    * * *   **    * * * *     ** s);

 * *    ** * **      * (s[c] != '\0') {
  **  **  * ** ** *  ** ***** **  *     *****  = s[c];
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**  *   *****   ** **      ** *** * **  ***** ** * **  if (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)
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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Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
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    }

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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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 * ***** ***   *  
 *  *  *** ***  * *****   ***  *   **** ** ** *       *  * * *
 * **     *      ***   * * ****
}
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* * *    ***  ** 
 * ** **** *  * * * **
int *   *
{
* *** **   * * ** char a[1000];
**  ***  * **  *  ******    
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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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