1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
12.6k 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 | 12.6k 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:172.69.59.112
©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 | 8.6k 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 | 8.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users