1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
16.6k 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 | 16.6k 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:172.69.7.78
©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 | 11.3k 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 | 11.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users