1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
20.8k 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 | 20.8k 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:104.23.243.109
©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 | 14.5k 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 | 13.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users