1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
17.4k 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 | 17.4k 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:104.23.243.165
©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 | 12.2k 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 | 11.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users