1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
15.6k 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 | 15.6k 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:172.69.17.205
©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