1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
19.2k 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 | 19.2k 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:104.23.197.95
©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 | 13.2k 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 | 12.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users