1 like 1 dislike
4.1k 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 | 4.1k 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:172.70.179.84
©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
| 1.7k 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
| 7.5k 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
| 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
| 3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users