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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#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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Case 1: 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)
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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')
 * * ***** *    ** * **   * * *    ** * * *  ** *  **  *  * * = 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 );

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return 0;
}
answered by (-32 points)
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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')
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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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  ***   * ***  * ***** *  ******  *  * *   *    * **
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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++)
   *      * ** *   ** * * **
* *  **   *** *    *     ** *** * *    **        
*** ***    ***  * ********   
 *  * * ***  *** *** ** ** **** * * ** = '\0';
 *  * * *    ** * ***  *     ***  = i;
***   *** *  * *    **    * *  (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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