1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
19.9k 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 | 19.9k 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:104.23.243.108
©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 | 13.9k 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 | 13k views
12,783 questions
183,442 answers
172,219 comments
4,824 users