1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
18.2k 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 | 18.2k 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:104.23.243.164
©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 | 12.4k 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 | 11.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users