1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
21.3k 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 | 21.3k 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:162.159.115.9
©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 | 14.8k 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 | 13.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users