1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
18.4k 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 | 18.4k 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:104.23.197.94
©2016-2026

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 | 12.7k 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 | 11.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users