1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
16.8k 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 | 16.8k 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:108.162.241.97
©2016-2026

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 | 11.4k 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 | 11.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users