1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
19.7k 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 | 19.7k 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 | 13.7k 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 | 12.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users