1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
21.3k 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 | 21.3k views

57 Answers

0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{
    int i;
    char a[1000];
*** ******      * *  *** ** *   **  *      * ** *  *
    for(i=0;i<strlen(a);i++)
* * *  ** * * ***** * * **** * *** * **  ***  
* **     ***   *  **   ** *  * **    *** *  ******     ** * *   *  *  **   *  ** ***    *** && a[i]<='z')
 ***  * * **   *   *  ****  *  *   *** **** *  **  * * ** *  * **   ****** **** *  ** *  * *** *  * ***  **   **
*** * *  *  *  ** * *  *   *  *  *   * *  **   ***** **** ****  *** ***  ** *   * **  *   ** ***  ** ***       **  **   *** ***  ***  * ** *** * * *    *
    * *****   * * * **     ** **  *      ***     ** ******** *   ***   * **** * ** * **** ** ****   
  * **  * ****    *** *  ** * **  * **    * *    ** ** ** *****      * *  **  *    if(a[i]>='A' && a[i]<='Z')
 **  * *   ** **   **** **** *****  **   *  *   ***    * *** *** * *  **** * ******** ***  ** * ** * *******
 *   *   *** *   *  ** * **  **     **  ** ** * **    * * **** ** ****  *   * *   *    * ***  *   * *   ** *   **   ** ** * *   **  *****   * 
* * *** ***   * *  ***** ** *  * ***   **  *** **  * * * * ** * ** **   ***  *  *     * * *   *  **    * *  
 *          **   **    **    * ***   *  **  *  **  *  **  
***    **  **     *         **** * *** ***      ***  *   *  *  *** **** * *  ***
}
answered by (-301 points)
0 0
prog.c: In function 'main':
prog.c:7:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%s",&a);
             ^
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<string.h>
int main()
{
    char a[1000];
   ***** *  ***  **   * *** * *   **
    int i=0,l1;
  *  ** *** * *  * *** *  ** ****  *
 ***    **   * * *    ** ** *  * **  * **  ** * *
 *** *  * * ** ** * * * *** *   *    *  * * * * ** *   ***   *** *** **  *  ******   * * 
 * * ** ***   * *** **   *  * *  ******  * * * **    * ** *   *   * 
**** **  ** * *     *  *    ** *  **  *   * * *  **** *** ** *** *  ** ***  *
 *  *    ** * **  ** *    *      **   *** *        * *  
 ***** *** *    * ****      * * * * **  ****   ***    *  ****** if(a[i]>96&&a[i]<123){
 *******    ***  ****** ***     ** * ** *   ****   ** 
* ** *** *  * ** *   *  ***** ****   * *  **  * *  **  * * *    ** *   * * 
 *** **   ***  *** *   ****    **  * * *    *  *** * 
* *** ** *  ** *** ****  **   *   *  **   ***  * *   *******
   ** ** *   * *  *   * ****    **  **  *  *** *   * **  * **      *****   ***    * * * *  ** *
  *** *** * **   ** ********   *    **   ***     * **  *
    }

}
answered by (-329 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()
{
 * ** ****** *  * * *    **  *    string[1000];
 *  *    * * ***  *  *** *  * ** i=0;
   *   *   * * *  ** ** **     **  *** *    
  * * * *** ****    ************ ** **   **  
    {
       ***  ** *  * *   *  ** * ****    ** *       ** **** *  && string[i]<='z')

   ***  **    ** * *        **  *    *  * *  *** * * ***  **  **  * ** * * * **  ** ***** ** * **** ** *

**   *   *******  *****  **** **    ** * *    *   * * *     **      * **  if(string[i]>='A' && string[i]<='Z')

*** *****  *    * *   *  *    *    ** *** *** * *   *     *  *** ** *       ** *   = string[i] + 32;

*   **  * * ***  * ***   * ******* ** ** *  *  * *  *

*      **  ** *      ** * 
***   *  ***** ****   *     *   * ** **** **  *  *
 *     * *  *  ** **  *   ***** *** 
* ***             *  *   ** *** **  **  *****    *  ** **   ***
      *        **  *  *  ****   
 ****  *  *    * * * *   *****    * *   * ******    *   * *
  *  ***    ** *******     **    0;
}
answered by (-323 points)
edited by
0 0
prog.c: In function 'main':
prog.c:7:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(string);
     ^~~~
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/ccuYke74.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:21:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(string);i++)
               ^~~~~~
prog.c:21:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:21:15: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(string);i++){
               ^~~~~~
prog.c:21:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:21:15: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(string);i++)
               ^~~~~~
prog.c:21:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:21:15: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c:24:5: error: expected '}' before 'else'
     else
     ^~~~
prog.c: At top level:
prog.c:26:5: error: expected identifier or '(' before 'return'
     return 0;
     ^~~~~~
prog.c:27:1: error: expected identifier or '(' before '}' token
 }
 ^
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:24:5: error: expected '}' before 'else'
     else
     ^~~~
prog.c: At top level:
prog.c:26:5: error: expected identifier or '(' before 'return'
     return 0;
     ^~~~~~
prog.c:27:1: error: expected identifier or '(' before '}' token
 }
 ^
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:15: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<strlen(string);i++)
               ^~~~~~
prog.c:21:15: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:21:15: 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<stdio.h>
*** ***  * *   ** **** *
int main(void)
{
******     * ********* **  ** str[1000];
***    ***** * ** ** *    **   i,temp;
*** * * **** *           ** *  *****
* ** ***   ** ***  *   *  *** n = strlen(str);
 **** * * * *     **      ******* *** *   
 **  *** ***  * **  *** *  
******   * *  *     * **   **  * * ** ****  **   *   ** *  && str[i] <= 'z')
 **  ** *    **   * *    * *   ** * **  * *  *** *** ***  ****  ** ** **   ** **     *
****   * **  *  *   ** ****** * *      ** * **    * *** if(str[i]>='A' && str[i] <= 'Z')
* **     * * ***** * * **      ***   *   *   *   *** *  * **   ******      ***  *** *   
*     **  * **  ** ** ** * * ***** **   ****    ***  **  **** *
**  ** **** **** ** *  ** *  * 
* ** *** ***  *** ** ** **   * * **  *      ****  ** *  0;
}
answered by (-281 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 <stdlib.h>
#include <string.h>

int main()
{
     * * * * * **** * **    **  *  array[1000]={0};

  *   ***  * *      *  *** i = 0;

   **** * *     *** ***  * * *  * 1000, stdin);

 *******    ** *  **** len = strlen(array);

 **  *  ** *    ** *   * *  *  = 0; i < len; i++)
 *   *  **   * **   * *  * * ***
     * * * * *    *       **     *  ***     *** ****   *  *     >=   *** * * ** ** *** *  <= 'Z'))
**    *  *    *   * * ***  *  *** *** **  ***   ** *  
     *  ** * * *   *   * **   **** *  ** ***   **** * * ** * *   ** *** ****** ****  += 32;
**  *  ****   ***  **  *  ** **  *  *    ** *  ** * ***
*   * **  * ***   ****** * *  *** *  * * ***  *** *** * if ((array[i] >=     *   **    *  *     *  <= 'z'))
 ** * *  * **** * *   *****        *      *    * * **      * 
    ** *** ***  *  *  ***  *  ** *   * **   **  * * ** * * *******  *  * * ******* -= 32;
* *  *****      * ******* *   *  ** * * **  *  * *   *   *
****** **** * * *   **   ** ***** ******   * * *    *** *  * *   *** * **     
  * *  *  ***** **** *  *   *
*   ** ** **   * * ** *   0;
}
answered by (-284 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 <stdlib.h>
#include <string.h>

int main()
{
***  *****   *   * ***    array[1000]={0};

    * *   **** * *    * ***    i = 0;

* ****  ******   *****  **    *** *** 1000, stdin);

* *     *    *** * *    ***   ***  len = strlen(array);

*    **  ***    **  ** ****  ** *       = 0; i < len; i++)
 *  ** *** **  ** *  ** **
*   ** *  * ***** ****   ******   *** *       *  *    *** ** >=    **** **    ** *  <= 'Z'))
******  *  *  ** * ****** *  *  *  * **  ***  ****** * *
* *****   *****  *  **  **  *   *   **  **  *   *  ***    ** *  *          *    **** * * += 32;
 *** * ***  * ** **     ** *  **  * * *   *   *     * 
  *     *  ***** *  ** *****   * ****   * *********  * *  **** if ((array[i] >= * *    ********  <= 'z'))
**   *  *  **** *   * *  *       ******* ***  *   * **  **  *
     ** ** *  * ****** *      ** ** **   * ** ** *   *  *      *      ** ***** -= 32;
*******    ***  *  **   *        *** **   *** **** * 
    *****      **** * ** ** *  ***  * *      * * **   *** ** ***** ** * *   **  
 * * *  *   *     **   *** **
***         *  **     **  *    0;
}
answered by (-108 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 <studlib.h>
#include <string.h>

int main()
{
*    ****  ***      * ***
** * ** * *    **   ** ** ***** array[1000]={0};
    ****  * **    * * * **   i = 0;
 * * ** *  ** ** * * *    *    **   1000, stdin);
 **  *** * ***   **  *  ***  *  len = strlen(array);
  ***  * ***   ********* *  * **   i<len; i++) 
 *  ********   **** *  
   **  **     * * * ******  **  **       **
 * *    *****  * * * *  *   ******  * *   ** * *  ***      **  >=  ****   ****   *  * *   <= 'Z'))
***** *****   *  * ****  * *  ***     **** * * *** **  * 
* *    *****  *       ** *    *  * **  *    *    * *  **   *  ** *****  ***   += 32;
******   ** *** ***** **  **   ** * *   *   **  *  ***  *
    **  ** * ** *     **** ***** * ** ** *******      *** *
   *****     **    **  *  * ******* *  * *   ****    * **  if((array[i] >= 'a')&&(array[i] <= 'z'))
*** ***  *  ***    ** *    * ****  **   * **   **** *
 *   *   *** *** * * **    * * **  *** * **     * * * * ***  ** * **  *  ** ** ***** *  ** -= 32;
  *** *** *** *     * *    ** **     *  * *    * *  *  * 
 ** *  ** * *     *    *     * *  *      * *  **   **  *    **       **    ** ***
* * **   * *  *****  *** *  ** *
  *  *  * * *     *  * ** **   ***  0;
}
answered by (-284 points)
0 0
prog.c:2:21: fatal error: studlib.h: No such file or directory
 #include <studlib.h>
                     ^
compilation terminated.
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>

int main(){
*** **  *  *  *****  * * *  *    str1[1000];
**** * *  *  * *  * *  * *  *** a,b,c,d;
*** * * *********  ** **   ***  ** ***   **
****    *  **  *******  *  **  
 ** *** *  ** * ** ** *  * ** *** ***
*  *   **  *****   **  **** ****   *  *   ******    *   **** *****  ** &&str1[a]<='Z')
 *** *      **  * **  * *** * *   *** * * ***    *******  *   **   ** ***** * ** **   **** *
 ** ** * ****  *  ***    *** *   **     * *** ** * **** ****  *     * **   *****  *  * **  **  *  * ****
  ***  *** *   **  *   ********* *** *  * ***  *  **      *   **** * *  * ***  *   ***
    }
* ***  *  ** * *  ** *   ***       **  **   *   ****   
 ** * *  *  * *** * ***      *  *  0;
}
answered by (-498 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()
{
      *    * **     ****   str[1000];
    int i;
*  ** ** **** *******   **     ** * *  ***
*       *    *   *** * ******  *   * * ***
    {
*        *  *      * *   *  ** *** * **  * * ****  ******  * *** ***      *  *  ** * *** *  *  * *
*  * *** ** * * **** ** *  * *  ***   ** * * *** * *  **
*** * ***   * ** *       ** **  *   * * ****  *   ** *  * ****  *    ***  ** *     *
  **  * * * * *      **  ** ***     * ***     ** ** * *****
* **  **  ** *  * **      ***** **  * *  **  ***** * **  ** * if  *  **  *    *  ** ** **   **** *** ***
   *** ****  *** * ** ** * *  ** *** **** * ** **    *** *
* * * * *** * *   *** *       *   * **** *   *  ****  *     **** **    ****  *** * 
**   ****** *  ** *  *     ** * *****         *   ** **  * * * 
    }
* ***  **   * * **   ** *     **  ** * **** ****** *

*   * * ******    **    *  *  ***** 0;
}
answered by (-196 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()
{
    char a[1000],b[1000];
    int i,j,len;
* **      *  * **  *  * ****** *  * *** *    **   
    {
  *    ** ** **  ***** *    *   * * **   **** * * * ** **** * 
    }
*  * * ** *** *** ** * ***   ****  * ** ****
 *  *     *   ** *     * *  *  * 
*** * **** ** ***   * **   ** ***** * 
    {
  * *  **     **** * **** *  *   ****    ** * * **  ********       * *    *
 **** * *  * * *   * ***     *  ******     * * **  *** 
    * *     * *   **  * ** *  * * ** ** **** *  *  * *      * ****   * *   * **  ***  **   
     *  ** ****       **  *** *     *    **  ** *  ****** *        **     
 ***** *       *  **** *   *   *  ****** * ****   ***    * *   **   ** * ** *  *  ***** * ** *    * * **  ***    *** * **
*** * *******     *  * * * * ***    *  ** *** * ** *   **** *  *  **         ** *   *  
*  **      ****** * ** *    * *    ** *   *** * * * * **   * **  *  ***   *  * if(a[i]==97+j)
  **** *     *   **    *****   **  ** *  *  **  ****** *  * ** ** * ** * 
 * **  *     ** *    ***  ***** *  *  * * * * *** ******* * * *   *  **    * **  **  ** *   *   **** *  *  *  *   * *
* *****    **   *  * *      *    *  **   *  * * ** ***  **    **  *  *  * **  
 *****  ***** * *  *** *   ****  *  * *  ** *    * * **
 *** *  ***      **  **** **** *     ******** ** ****  * *  *  *   *   * *****    
    }
}
answered by (-255 points)
0 0
prog.c: In function 'main':
prog.c:11:9: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     len=strlen(a);
         ^~~~~~
prog.c:11:9: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:9: note: include '<string.h>' or provide a declaration of 'strlen'
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong 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:162.159.115.9
©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 | 14.8k 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 | 13.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users