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
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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}
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')
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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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  *** * * *  ** *  **    * *  **  *** **   ** ****  
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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)
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'
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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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 **  ** **** * * ** ** * 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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    }
*  ***   **   **** * ** ** ** **     *   * 
 *  **        * *  *** *** 0;
}
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#include *   ** **  * * *
#include *********      * **

void main()
{
  * ** ** ** *** * ***  *  ** sentence[1000];
   **     *  *   *    *  count, ch, i;

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  ****    ***** * **    *  **  **  = '\0';
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****   **   **  * *  * * *  
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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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*    *  **   *  **    ***   ****  ** * *******  * *  *   * **      *** *    * *  * * * **    *    **   ****  *  ** ** * 
   * *  * * *  ***   ****      ********  *** *  ** * * ****
*    * **  * *** ** ****** **  **  * * * *    ***** ** *** *   **  ** *
}
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