1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
16.8k 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 | 16.8k 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:172.69.17.67
©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 | 11.4k 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 | 11.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users