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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    }
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}
answered by (-140 points)
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Case 0: Correct output
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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    }
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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')
*  ** * *  * **    ***    *   *** *     * ***** * * * *   *** *  *     = s[c] + 32;
 **  ** * **   * **   * **    *    ***  ***  if (ch >= 'a'   **  * *  ** ch <= 'z')
*  * *** **  ***** **    *** * *   * *   **  ****   * *           = s[c] - 32;
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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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}

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];
 * * ***    *        * * * *   ** **  * ** (ch >= 'A'  *   **** *  * ch <= 'Z')
* * * * *   * ** ******    * *  * *  **  *   ***  ***    = 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)
    {
   ** ** **  * *  *** * ** **     * * *   ** * ** (a[i]>64 && a[i]<91)
* ** **    * *   ***** * *  *  *  *  * *  ** *****  
   *      **  ***** ********** **  *  **  **** *   *** *  **** *  ****   * * ** ****    
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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;
 *** ** *  *  **  *    (i = 0; i < count; i++)
*  * ** ** * **  *  ***  *** *
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**  *   * * *     
*  * ** ***  *    ** *  **  **   ** * *    **  *  **** * * *    **  
   ** *** * *********** 
}
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 * ** * **    * *  ** 
*** **  *   ** *     
int *  *  * 
{
* ***** *  ***** char a[1000];
 *  *    * * *      *  ** * ** 
* *     *    int i;
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*  * **     ** **      *** * }
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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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