1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
20.7k 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 | 20.7k 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:162.159.115.9
©2016-2026

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 | 14.4k 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 | 13.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users