1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
17.9k 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 | 17.9k 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:104.23.197.94
©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 | 12.3k 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 | 11.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users