1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
13.2k views

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
edited by | 13.2k views

57 Answers

0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
 * ** ****    *   *   *****    a[100];
* * * * **** * ***** * **   *      *  *  * ** 
   *  ***     *****  *  *    * i;
* *   ***     ******    * *  ***  ***   **  * ***
 ** *  * *  * **  *    **   ** **
*** ** ** * ** *        * *   * *  *** ******* ** *   *  **  * * **   **  ****  *  
 *     * *          *****       *  ***  ***** * * * *** **  ** *  ** *      ******
* * *  *     ** * * **  *        **   **  **    * **  **    *  *  * *  ***  *  * ****      * ****  * * ***
*  * * *    * * ** ** ** * ****  ** *    *** *  *  * * ****  * *     *  *  *** **    ** **  

    }
*** ***  ** *    * * *   *** ***   *****  * *      
 **  ***      ****** ** **  * *   0;
}
answered by (-140 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main()
{
**     **    ** **    * ****  * * a[100];
 ***  *** ***   **** * ***     * ** 
*   *   **      **  ** * *   i;
** * * *   **** *  *   **   ** **   ***     ** 
*   ****** * *** **  * **  * 
* *  * * *** ** *     * *  **  ********* ** *  ** *   **  *** *  * **  *  * * ***  * *
 *   ** *  **  *   ***       *  * ****  * ** * *    *  ** ********  ***  * *  **      * * *
     * * * *   * ***  *  ** * **  * ** *  ** *  **      *     *     **  ****          
  ** *** *  *  *     **  **** **   *** * *     ** ** * *** ****  *  *     *        

    }
*    **** **  *  *  *    ****** ** * *   ** * * 
* * *  ** ****   ****   *   *  0;
}
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')
                            ^
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#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')
 * * ***  * ***  **  * ** * ** **  * ** * * *** **  ** *** *    = s[c] - 32;
*  **  ** * *** *  **  *****  **    ***  *******
* * *      **  *  ** * 

 *   *          ** * * *  **** ***  *  * ****    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.
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include *** *  * * **** * 
    * * * * ****       
   * * *    *    **  * 
int * ** * **
{
char a[1000];
int i,n;

    * * *   **      : *   * * );
 *** * *** * ** ** 
* *  * *
**  *  *     *  
{
* *    *  ***    ** * **** * ( ( a[i] >= 'a' )    * ** * * ( a[i] *  * 'z' ) )
 *  *   * *  * *  ****  * ** * *** * ** * ***  **** 
  ** *   ****  ***   * **   *  *  **   **  *   ******  ** = a[i] - 'a' + 'A';
** *  *****    *** *  *  ** *  ** * ** ***   *   * **    
** **   * **** *  **  ***    if( ( a[i] *    * 'A' ) * *    *  * * ( a[i] ******    'Z' ) )
***  *  ***    ** ****** ** *  * *  *    ***   *** *
 ** * **      **   ***  *** * *  * ****  ** *     = a[i] + 'a' - 'A';
  ** *  *****  **   **  *    * **   *** *  *****   * **  
}

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

    ******** *    * **  *
return 0;
}
answered by (-32 points)
edited by
0 0
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)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#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')
   ***   *  * *   *   * *** *  **** ** * *   * ** * *     *** = s[c] - 32;
 * **  * ** * * ** *   **** *  **   ******
** *  * *   *        **

*  *     *** **  ** * * *  **  *  ** *    s);

  *** * * *   ***** * 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)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

int main()
{
*  *       ****    *    ****  a[1000];

   * *** ** * ** ** **    *** ***** *

** * *  *    ** ** ** *** i;
 * ****   ** * *   ** **** **  * *   ** * * *****  
* *  * **  **** * **** *     * 
** * *  * **  * ** *  *   * ******    * ***  ***  ****  *  *  *   *   ***   *   *  **
** * *    **** * * *** ***   *        *  *** ** ******* *  ****** *  * *   *  * * * *  * * *


  ** **  *  *  * ** *         ** ** * * **** *  **   ****** ***        *   * *** * **** ** * * *
  ******   *** * * *    * **  *** *  * * * **     ** * *  ***  *   *  * *   *  ** ****  *


    }

  *  * ****  **  ** ***** ****    ****      *  * **  

 *    **     ** ****     **   *    0;
}
answered by (-16 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
   * *** * *        ****    a[1000];
 *****     ** ** *    ****  * i=0;
*********** * *   * *   **       *  *
     *  *    ***** **   * * *  ** (a[i]!=0)
    {
* * ***  * ****   *  ** ** * *   ****  *  ***  *  * * ***  *  (a[i]>64 && a[i]<91)
  **    * *** *   *  *   *  *****  **   *    *  ****
 **    * * ** *** * *       *   * *  ***  *** * *     *  *    *    *    ******  *  *****  
*** * **  **     *  ** ** * ** * *** *  ** * *  ** **
*   *     *  *** * *    *  **    ***   **    * **  *  **   *** if (a[i]>96 && a[i]<123)
*  * ** * *****  * *  ** *    ****   * **  * *  **  *  
* * ** ** **   **  ** * * *  *** * *  ** ***  ** *   ** ***   * *** ******  ********  *   
 ** *  *  *  **** * *  **** **  *   ***** ***   ** 
  **       * *   ** *  * ****    *** ****   * *   * ** **
    }
 * ** * *** *  ***  *  *    * **   * * *** *
***  **  * ** ******  * * *   0;
}
answered by (-229 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include  *    *** **** *
#include ** *     **  * *

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

   *****   *****     * ****  (i = 0;(sentence[i] = getchar()) != '\n'; i++)
* ** *   * *  ****   *  
****   *  *   *  *********  **  * * * ***  * *** *** *  *** 
 ** * *   **  *   * ***   * * *
**********    *    * ** ** **   ** *** *  = '\0';
**  *  * * *  *** **  = i;
  * *   ** *  ******* ***** ** (i = 0; i < count; i++)
    **  *  ** ** **** * **   
 **  *****  *   *  * *  **  **      *   *  *  =  ** * *    *   *   **  *  *  :
 **    *   * * 
*     ** ** ***  ** * ******* ** *    *  * **  ***   **** ** * ***
* *  ***  ** *  *   ***      *
}
answered by (-168 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
* **  ** *     **  
*  ** ***** * * * **  * 
int   *  * 
{
 *** * * **   * *  char a[1000];
* *       * ***     *   * ***
   *  **  * *  int i;
** **  **    * *     ***** **** *  
 *  **   *****   {
*** * *  ***  *  * * * **      ***   *  ***  *** ** *   **    ** * *
* *** ** *** *      {
***  **          ** * ***** *    * *  
* * *    * * *       * }
*  ** *   **   *  **   **     else * * *    ***   * ***** **    ** ***    
  *  *    *  *    *   * *    *  {
*  ****    ** ** *  *   **  * **   ****   ** *     **   * *  
 * **** *  ** * * *** *  * **    }
*   *  * *  * *   }
 *** *  ** ** **      ** *  ****   * 
}
answered by (-249 points)
edited by
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#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')
     ** **  ***  *   *    * ****   *    **** * ***  ******  **** * *   **** ***  * * *    ** * *    *   
 *  **   **** *** * *  ** **    * *  * * ***  **  ** * ******  *    **** * * *   *** * *** ** * *   **  ** *     *       *****   * *   **  ** **       ***   *     **
* ***  * * *   *** *   **  *** *   ******   *     **  *** ***** *  **   * *  *  * *   *    *   *  *  **** 
  ** *  *****  *** **  * **  ****  * ***  * * *  *
  ** * *****    **  * ** *** ***  ** **  * *  *    * ***    * **  ** **
}
answered by (-258 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.71.203.113
©2016-2025

Related questions

0 like 0 dislike
27 answers
1-11 Exercise 3: Prefix of a string
[Exercise] Coding (C) - asked Jan 11, 2018 in Chapter 13: Strings by thopd (12.1k points)
ID: 41439 - Available when: Unlimited - Due to: Unlimited | 9.1k views
0 like 0 dislike
29 answers
1-11 Exercise 2: Reverse a sentence
[Exercise] Coding (C) - asked Jan 11, 2018 in Chapter 13: Strings by thopd (12.1k points)
ID: 41436 - Available when: Unlimited - Due to: Unlimited | 8.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users