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:162.159.115.10
©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 | 14.2k 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