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
Case 2: Correct output
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
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    }
*****  ***** *  *    ** *** ******   **  * **  
 ********  *       **       0;
}
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')
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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 ****** ***  * *
**  **  ***  **** 
  **     *   ** **  * **
int     * 
{
char a[1000];
int i,n;

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{
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* * *** **   *  ******     *** **  ** *    *******    *
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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.
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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*****   *        ***   ****  *** ***    ** * *  *   ** **** *      = s[c] + 32;
  ******  *** *  ****       * *****  ***** if (ch >= 'a' * *** ***   * ch **  * 'z')
** ** *  *  *    ****   **  *  *   *   *    ** *****  * ** *   ** = s[c] - 32;
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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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    }
    * **    ** *** *    *  ** *** ****** * ** *     
 *  **** ** *  **   ***  *** 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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**  **      **   *  * ***  * 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')
  ** ***** * *  ** * * **** * * *** * **   * ****  ** *  **   *  * *  ** **** **   *  *   ** **  ***** * * ** *
*  **  **  ** *   * ** *  **** *  * *  ***** ******* **  *   ****** *   *  *******   ****   **   *   *   *   *          *            ** ** *  *
*  ** *   **********  *  *         * ** * ** ** ***  *  *****   **  * * * * **          ***  * **   *****  ** **
**   *  *  *  *       * * *     * * ***  * *    *** **   * *   * *   * ***     if(a[i]>='A' && a[i]<='Z')
         * ** ***  *****  *  * ** ** ** ******     * * * *   *      *    * * ** * *    * **  *        * ** 
  * *  *     ** * * **  *****   *  **   ** **       ****   **  * *** *  * ** *** **   *   * ****  ** *     *** *     *  *    **  **** ** *  * * * **    * 
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* ***  *   * ****  ***  ** * **** *******  **  *  ** *  *  
    *** *** *    **         * ***  **  **** *  **      **  ** ** *  **  ** *** 
}
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