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
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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)
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')
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****  ******    * *

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* *** **  *  ***     **  * * 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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{
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  ** * *  ** *   * *  **** *      * * *  ** * *    * 
}

printf(  * ******* *    * a );

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return 0;
}
answered by (-32 points)
edited by
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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'
commented by (4.3k points)
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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];
* ** * **  ** *  * * *** * ****  ** **  ****   (ch >= 'A' *  ** ** * * ch <= 'Z')
       **** **   * **** *** *  **** * ******    *****   **  = s[c] + 32;
  *** * ****      *   **** *   * ***  ***   if (ch >= 'a'  *    ** *   ch ** 'z')
   *     **  ** ** *   * ** *** * **  *  ** *   *   * **** ***  = s[c] - 32;
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** *  *   * *  * * **

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     ** * * * *     ** 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);
            ^
commented by (4.3k points)
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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;
* * **** ****      ** **   * *        ** ***
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    {
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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++)
  *  **  *   *     * **  *  *  *
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*  *  * ***  *  **     **  **  *     = '\0';
* *****  **  **  *  * * **   = 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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      ***    ** *  **     ** *** *   ****  * *   **  * * *     **  *** *  **** * *   ***** *  **** **  **   ** *   *** *******  ****   *  *  *  
* *     *  * ** *********** *** * * *  **    ** **    ***  * ******** ** * ***  *  ** * * *** *  * *  * ** *
* ** *  **        ** ****   *  **    ** *** ***** * * ** *         ** **   ***** if(a[i]>='A' && a[i]<='Z')
*** * * **   * *** *   ** ** **    * *** *    * ****    ****** ** ** **** *  **  * *   * ***  * **   ***   * *
*       **    * ***** *   ****  *  * ** ** ** **  * *    * *  *  *   **  * * ** ****** *    **  **   * ******    ******* **  **  **   **** **   **    
 ***   *  ***    * *** *     **    **** **** *  *   *** **  *** ** *    **      * *  *****   * * ** *   ** 
    *   ****    *   *** **  **** *  *** ***** *  *  
******  *** ** *** **  *     * ** ** * * **** * ** ** ** ** *  ******* *  * *
}
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