1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
16.6k 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 | 16.6k 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:172.71.120.163
©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 | 11.3k 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 | 11.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users