1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
12.8k 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 | 12.8k 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:172.69.214.38
©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 | 8.9k 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 | 8.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users