1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
15.5k 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 | 15.5k 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:172.70.50.50
©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 | 10.7k 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 | 10.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users