1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
16.3k 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 | 16.3k 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:172.71.120.164
©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 | 11.1k 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 | 11k views
12,783 questions
183,442 answers
172,219 comments
4,824 users