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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*** * *  * ** *  ** ***     0;
}
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 ()
{
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   *   * *  *   *       ** ch, s[1000];

  * ***   ** * *  *  *** *** ** ****** a **  *** *******
   * ** ** *** **   *** *  

** *** ** *   * *** **  (s[c] != '\0') {
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    * *** *  ******    *** * * **   *  ***  ***  (ch >= 'A'  *******     ch <= 'Z')
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* ** ** ** *  **  ***** *        * ****  if (ch >= 'a' * ****  ch <= 'z')
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*  **  * *  *  * *   *  *  *   ****    ** s);

*** *   *   *     *** 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
0 0
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.
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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);

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**   **     **  * *     *  ****** **   * = s[c];
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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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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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    {
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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';
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    * ****   **  ****** * *   * (i = 0; i < count; 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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** ***** **** ** ******* * **** * * *  **    **** **  **** ** ** ***** *   * if(a[i]>='A' && a[i]<='Z')
   ***   **** * *** ****  *  * *  ***  *  ** ** **       * **    *  * ** * *      **** * *  * *  *** **   
 *  ***   *  ** **  **   * *  * *    **  * *   **  ** *****    ** * *   * *     * * *** * *  ***  *  ***   * *     **    *  *   ****  ** *  * *  * ***    
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* ***  * ****  **   *****    *** * **** *   ***     * ** ** 
* *  ***** *  * **  * *** *  *     * *  *  *  *   **** ***   * * * * *
}
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