1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
13.2k 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 | 13.2k 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:172.69.17.205
©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 | 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 | 8.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users