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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    }
** * ** **   **** ** * **   *     *   *  ** *  
* *  ** *            *** **  *  *** 0;
}
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];

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   ******   * **  ***  * 

*****  *** *    *   *  (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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{
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***  * ** ***   ****** * * * **   * *** ** **  * * ****  *
}

printf(          *   *  a );

*  * *  ***  ** * *    ** *
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];
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*  ******** **  *******  (s[c] != '\0') {
** *      ***** * ** ***    ******  = s[c];
*** * *   *   * * * *   *        ******* *  (ch >= 'A' ***    ** ch <= 'Z')
** * * * **  * **     ** **** *  * **   *  * **   *    *  *    = s[c] + 32;
*   ***     ****** **   *    ***   **  *  *** if (ch >= 'a'     * *  **  ch      * 'z')
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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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    }
 *** ***  ** * * *    * *  * *  *     **   * **   
  **  * *  *** * **** * *   0;
}
answered by (-229 points)
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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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   *** *  ***** * * * *   * *** ****  **  *   *  * ****     * ***  
*   *** * **          {
*              **** * ** ** *****  *
** ****   *  **  *  *   }
* * * **   * * **       *  * ** else  * *** *  * * * * *  *   *      **      *  * **
  ***    * ** *** *  ** *** * **   *    {
**  **   * ** *** *** * ****  * * ****  *   **   ******
 * **  *   **** * ** *   * *   }
*  *     *   * }
* ***  *****    *        * * *  *
}
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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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