1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
13.3k 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 | 13.3k 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:172.70.100.84
©2016-2025

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 | 9.2k 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 | 9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users