1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
10.5k 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 | 10.5k 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:108.162.216.250
©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 | 7.2k 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 | 6.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users