1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
13.8k 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 | 13.8k 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:172.70.80.21
©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 | 9.6k 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 | 9.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users