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 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)
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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') {
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  * ** *    * ****   *** * *   * **   ****  (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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}

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];
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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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Hidden content!
#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)
    {
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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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**    ** *     * * ****
 ******* **** **   **
int * *** 
{
    *    * * *  char a[1000];
  * *   **     *    * * ** *
   *   *** *  int i;
   * *  *  ***  *     *  * ** * **   *
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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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