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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** *  * *** ***    ***  * * ** ** * 0;
}
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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];
*   *   * *** *       **   **    *  *  (ch >= 'A'  * * **  **   ch <= 'Z')
 ** ** *   *****  ***** * *    ** **   **  *     ** ****  ********  ** = s[c] + 32;
  ****   *   ** ***** **    **  ******  *** *  if (ch >= 'a' *******    ch <= 'z')
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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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***   *** *     ** *  * ***  ** * *        *  *  *
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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.
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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 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];
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***   ** *****   *  * *****  ****  **   *  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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  **   **   *  *   ** ** * **  **   (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];
* **  *  * ** ** *    **   ** *
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***       *  *  **** **  **** * *** * **   *** *  **   ****    * ****** 
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* * *****      *   **   ** }
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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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