1 like 1 dislike
7.5k views

Write a program that asks the user to enter two integers, then calculates and displays their greatest common divisor (GCD) and their Least common multiple (LCM).

寫一個輸入兩個整數 輸出它們的最大公因數程式

Hint: Use Euclidean Algorithm

使用歐幾里得演算法

LCM:

In arithmetic and number theory, the least common multiplelowest common multiple, or smallest common multiple of two integers a and b, usually denoted by LCM(ab), is the smallest positive integer that is divisible by both a and b.

What is the LCM of 4 and 6?

Multiples of 4 are:

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, ...

and the multiples of 6 are:

6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, ...

Common multiples of 4 and 6 are simply the numbers that are in both lists:

12, 24, 36, 48, 60, 72, ....

So, from this list of the first few common multiples of the numbers 4 and 6, their least common multiple is 12.

 

Example input: 

12 28

Example output (first number is GCD, second number is LCM):

4 84

 

[Exam] asked in Midterm by (12.1k points)
ID: 32707 - Available when: 2017-11-15 14:10 - Due to: Unlimited

edited by | 7.5k views

36 Answers

0 like 0 dislike
Hidden content!
#include<stdio.h>
int main()
{
**** * * * *** ** ** ****** * a,b,c,d=1,a1,b1;
* ***** * * * * **** * ** * * ** ******** ** ** * *
*** * * * * ** ** *
* ** ** * ** * * ***
**** ** * *** ** **** *
    {
* * * * * ** * *** ** ** **** **** * **** * *
********** ** ** * * ** * *** * * * ** **
* ** ****** * **** * * * * * * * ** *** **
    }
** ** *** ** **** * * ** * *** * ** ** * * ** * ******* * *** ******** * %d",b,(a1*b1)/b);
*** * * * ** * * * ****** * *** *  for(d=a1;d<=a1*b1;d++)
*** **** * * * ** * ** **** ** * ** ** *** *
*** * *** *** * ** ** ** **** ** ** *** ** * * * * **** ** *** * * && d%b1==0)
***** * * ** *** * **** * **** * * ** *** * * ******** * ** * **** ***** ** * * * ** * ** * * ****


* ****** *** ********* *** * * * ***



** * ****** * * *** 0;
}
answered by (-329 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main()
{
**** * **** *** ** * n,m,i,j,lcm;
* * *** ** * ** ** ** * ** **** * ****** * ***** * *
** ** *** * ** * *** * ** *** *** *
** *** * **** * * **
**** * ***** * *** *** * * * *** *** * * * * ** && m%i==0)
* * *** * * * * * * * ******* * ** * * *

*** * ****** * * * *** *
* * *** ** * * * **** = (n*m)/i;

* * * ****** * * * * * * * ** %d",i,lcm);

*** ** ** * * * * * 0;
}
answered
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main(void)
{
** * ****** * * *** * **** ** * a,b,i,j,d;
** * * ** ** L1,L2;

*** * * ** ** * * * * %d",&a,&b);


* ** ****** * * ***** ** * * **** **
* * *** *** * * * *
*** * * * ** *** * * **** ****** * ** * && b%i==0 )

**** * * * **** ** ** * * **** * **

* * ** * * ** ** ** * ***** **** * * * * * *** ***** * * * **** ** * * ** * **
* * * ** * * * * *** * * ** *



    }
* * ** * *** ** * ** * **** * * ** *
    {
*** * ***** ** ** * ** * * ** * * * * * * *
* *** ** ** * * * ** * *** * * **** **
* ** * * * ** ** *** ****** * * * *
*** ** * * * * * * ** * *** * ** * * *** ** *
** * ** ** ** * ** ** ** ** * * * ** ******
** ******** * ** * ** * * ****** ** * * * * * ***** * * **** ** ** ** * ** *
* ** ** **** ******* *** * * * **** **** ** ***

    }




** *** ****** * * * 0;
}
answered by (-249 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include **** * **** * *

int main()
{
** *** * ****** n = 0;

* * * * ** **** ** m = 0;

* * * * *** * * * **** ** multiple_m = 0;

** *** *** * *** *** multiple_n = 0;

* *** * ***** ** *** * ** ** i = 0;

**** * * ****** * j = 0;

* * * ** ** * ** * gcd = 0;

*** ** * * ** ** *** * * *** ** %d", &n, &m);

*** * * * * * ****** = 1; i < m; i++)
* *** *** ***** ****
****** * * ***** **** * *** *** * **** % i == 0 && n % i == 0)
* * * ** * * ***** *** ****** * * ** ***
* ** ******** ** * ** * ***** ** ** *** * ** * * * * * **** * * * * = i;
** *** ** * ****** * ** **** * ***
** **** * * ** *
*** ** * * * * * ** ***** * ", gcd);

* * *** * * * ******* * = 1;i < 100; i++)
* **** * * ** **** ******* ***
******** ****** * ** ** * *** *** * * ** * * * = m * i;

* **** * ** **** * * **** ** *** * * *** * * = 1; j < 100; j++)
** *** ** ** * * ** *** **** * * * ****
* * *** ****** * * ** * * ***** ** ** ** * * * ** * * * * ** ** * = n * j;

** ** **** * * ** *** * * ** * * *** ***** * ***** * *** **** ** == multiple_n && multiple_n < 100)
* ** * **** **** ** * *** ***** ** * * *** ** * ** * * * * * * * ** *** * ** * * * * * * multiple_n);
* * ** **** **** ** * * ******
***** ** **** * * ****
}
answered by (-285 points)
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
** * ** * ** * **** a,b,i,j,max,min;
** * * ** ** * * *** * ** * * %d",&a,&b);

* ** ** * * *** **** i>=1; i--)
** ** *** ** **** *
* * * ***** ** ** *** * * *** * ******** * && b%i==0)
* * * ** * * * * * * * *** ** * ** * * * * **
* ** ** *** * ** *** ***** * * * ** *** ** * * * ** * * * * ** *** * ****
** ** * * ******** * *** ** *** * ** * ** ** ** **** ** * ** * ** ** *
* * ** * * * * *** * * *********** ** * * ** **** *

    }

* * * * **** * ** j<=a*b; j++)
* *** * * * * *
* * **** ** * **** * ** ** ** * * ** ** ** * && j%b==0)
* **** * * * * *** ** ** ** ** * ** ****** *
** * * ****** * * * * **** * * ** * ** ** ** *** * * **** *** **** * * ** %d",j);
* ****** * ***** ****** * ** **** * * * * ** ** *** * ** **** *
*** * * ** *** ** * *** ** ** ** * **
** * *** ** * ** * ** **


* * * ** * ** *** * * * 0;
}
answered by (-127 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
* * * * *** * * **** ** a,b,i,j,k;
*** *** * *** ** * * ******* * * ** **** ** * **** **
** * ** ** * ** * ** * % b != 0)
***** ** ***** ** *
* * ** * **** **** * * ** ** * *********** ** * = a % b;
*** * *** * * * * * *** **** * ** = b;
***** ** ** *** * * *** * ** ******* ** ** = i;
* * * * * ** * *
**** ** *** ** * * **** ** * *** * * ** * ** **

* ** * * * * ** ** ** *** 0;
}
35/100 answered by (-255 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
****** **** **** * * * * a,i,j,k,l;
** * * *** *** * ********* * ** * ** *****
* * * * * * ***** *** ** ** = 1 ; i <= a ; i++)
    {
*** * *** *** *** * * * ** *** * * * * ** = i ; j <= a - 1 ; j++)
* * ** ** * ** *** * * * **** * *** ***** *** * * *** ** *** *** ** * *** ");
** * *** ** **** ** ** *** * ** * * * = 1 ; k <= i ; k++)
** * *** * * ** * ************ * ****** * * ** * * * ** * * * *** * * * * ***
******** * *** * * ******** * *** * ** * * ** ** = i - 1 ; l >= 1 ; l--)
** ** * * * **** * **** * * ** *** * * * ***** *** *** * ** ** ** * ** * *** * **
** * ** * *** * ** *** *** * **** **** * != 0)
* * *** *** * **** ** * * * * ****** * * ** *** * * ** **** **** * * ** **** * * * * * *
* * **** * ** *** ** *


** *** * ** ** * * * * 0;
}
answered by (-255 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
int main()
{
* * * *** * * * * a,b,gcd,lcm,c,d;
*** * ** ** * * * * ** * * * %d",&a,&b);
* *********** **** ** * ** *
** *** * * * * * *** **
* **** * *** ** ** * * (a%b!=0)
* * * * * ** * * ***
* *** *** **** * ** ** * * * * ****** ***** *******
***** ***** ** * ** **** * * *** ** **
* **** * * *** ***** ****** *** * ** * * * ***
*** ** * * * * *** ***** *
****** * ** *** * * **** **** * *
*** * *** * * ** *** * *** * * %d",gcd,lcm);
**** * * * * * ** * * * * 0;
}
answered by (-229 points)
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main(void)
{
    int a,b,i,c,n;
    scanf("%d %d",&a,&b);
    if (a>=b)
    {
* * * * ** ** *** * * * ***** *** (i=a;i>=1;i--)
* * * **** *** ** ** ** * * ** * * ** *
** * * ** * * * * * ***** * ** * * *** * **** * **** * * ** * * ** * (a%i==0 && b%i==0)
* * ** * ** * ** * * ** **** *** * **** ** * * **
** ** * * **** ** **** *** * * ** **** ** **** *** * ** ** ***** **** ** ** * * * * *** ** * ",i);
* ** * ***** * * * ** ** *** * *** * * * ** ******* *** ******* ** * * ** ** * *** * *
* * *** ** * * ** * * * * * * * * * ** * * * ** *
**** *** * * ** ** * * ** *** * ** *** **** ****
    }
* ** ** * ** * * * *** * * ** ***** ** (b>=a)
        {
** * * * * * ** * * * * *** **** * **** * * * * *** * *** * ** (i=b;i>=1;i--)
        {
* ** * *** * *** ** * * ******* * * ** ** * * * *** * (a%i==0 && b%i==0)
* * * * *** ** * * **** ** * ** ** * ******** * ** **** * *
*** * *** * ** * ** * * ** ******* * ******* * ** ** *** * * ** *** ** * * * * **** ",i);
* * * ** **** *** * * * ** ** * ** * *** ***** * ***** * **** * * ***** * *** ** *** * *** *
** **** **** * ***** * * ** * * * ** * * ***** * **** ****** **** **
        }
        }
**** ** * * * **** * * ** ****** * ****** ****** * * **** ** **** * * * * ** * *
* * ** ******* * * **** ** ** **** * * *** * * *** * * *** * ***** * * **** *** * *
* ** * * * ***** * * ***** * *** * * * *** ** * * * * ** *** * ** **
*** * * * * **** * **** ** * ****** ** *** **** * **** *** * * * * * * ** ****** * ** *** * ** * * (c%a==0 && c%b==0)
****** ** *** * * * ***** * * * * *** * *** * ** * * ** * * * ** **** ** *** ** * ******
** ** * * *** * ** *** ** *** * * *** * *** *** * * *** * * * *** *** *** * * ** * * ***** **** * * *** ** ** * ** * **** * ** *
* * ** ** * * * *** * **** * * * ** ** * *** ** * ** ** ** * **** * ** * * * * * * *** ****** ** * * ** * * * * *
* * ***** *** * * **** * ** * *** *** *** * * * **** * *** * *** * ** * ****
* *** ** * * * * * * ****** * * ****** * * ** * * * ******* * * * ** **** ** * ** * ** *
***** * * * ** **** * * ** *** * * ******** * * * ** *** **** * * * *

* * ***** * * ** **** *** * * **** *** * * ** * 0;
}
answered by (-168 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
0 like 0 dislike
Hidden content!
#include *** * ** *** *
int main()
{
*** * *** **** * a;
* **** * * ** * ** * ****** **** *
* * *** * ** ****** * ** *** * * ****
* *** ******* 0;



}
answered
0 0
prog.c: In function 'main':
prog.c:5:10: warning: too many arguments for format [-Wformat-extra-args]
    scanf("number",&a);
          ^~~~~~~~
prog.c:6:11: warning: too many arguments for format [-Wformat-extra-args]
    printf("4 84",a);
           ^~~~~~
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.17.67
©2016-2025

Related questions

0 like 0 dislike
10 answers
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36752 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 3.1k views
0 like 0 dislike
69 answers
[Exercise] Coding (C) - asked Oct 26, 2017 in Chapter 6: Loops by semicolon (5.2k points)
ID: 28913 - Available when: 2017-10-26 18:00 - Due to: Unlimited
| 13.2k views
0 like 0 dislike
21 answers
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36754 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 5.3k views
0 like 0 dislike
22 answers
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36753 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 5.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users