1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
15.9k 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 | 15.9k 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:172.70.80.197
©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 | 10.9k 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 | 10.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users