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];

**  ** *  **   ***  * * *  *      * a  * *  *  * ***
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** * * **   **  ** ******* *   *  ***  ***** *  *** = s[c];
* * * **  ****   *****    *   *  ** *  * * (ch >= 'A' *****      ch <= 'Z')
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* * *    *   ** *******    **  **  * ** *  * 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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*****   ******  *** *  *     *          *   *   * 
}

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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 *     * *  *      *   **   **    ****  *  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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#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;

   *  *** **   *  * ** * *   ** * (i = 0;(sentence[i] = getchar()) != '\n'; i++)
 * *  *  *  ***    ********  **    
*  **  ** ****  * *  * **   * **       *      *     **
**     ****    * * ** * *
  * ** **     ***** *******   *    = '\0';
 ****** *** *** ** *** ** ** ** ** = i;
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* **** * *     
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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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