1 like 1 dislike
9.2k 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 | 9.2k 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:162.159.115.32
©2016-2026

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
| 3.7k 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
| 15.5k 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
| 6.2k 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
| 6.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users