1 like 1 dislike
8.2k 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 | 8.2k 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:172.69.214.38
©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
| 3.5k 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
| 14.5k 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
| 5.7k 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
| 5.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users