1-11 Exercise 1: UPPER and lower letters

0 like 0 dislike
18.4k 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 | 18.4k 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:104.23.197.95
©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 | 12.7k 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 | 11.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users