1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
11k 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 | 11k 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:172.71.254.89
©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 | 7.6k 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 | 7.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users