1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
13.1k 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 | 13.1k 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:172.69.130.71
©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 | 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 | 8.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users