1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
18.7k 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 | 18.7k 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:104.23.243.108
©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 | 12.9k 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 | 12.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users