1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
15.9k 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 | 15.9k 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:172.70.50.50
©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 | 10.9k 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 | 10.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users