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
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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];

* *     ***  ** **** *   *   * *    a  *  * *  *   
* *  *  * ** *  *   **

  *   * ***     *** ******* (s[c] != '\0') {
****    **   *** * *****  **  * *    ***   *** = s[c];
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  *  * *      *  * ***** **  * *   ** *** *  ** *** = s[c] + 32;
 **  * *    *  **  ** *****   ** * ***  *  if (ch >= 'a'   * * *   ** ch <= 'z')
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}
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
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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)
0 0
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];
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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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    * **    * **  * ** * **  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;
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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';
**  **    *  ** * *  ***  ** = i;
***    **       *  *  *  **   (i = 0; i < count; i++)
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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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  ** *   **      * ***  *** **    *  *  *     * ** * 
 * * ** * *     *         **  **    * *  *   *** * *  ** ***  * ** * ****
}
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