1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
20.5k 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 | 20.5k 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:104.23.197.64
©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 | 14.3k 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 | 13.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users