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:172.69.58.49
©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