1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
13k 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 | 13k 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:172.71.255.50
©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 | 8.9k 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 | 8.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users