1 like 1 dislike
4.3k 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 | 4.3k 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:172.69.17.128
©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
| 1.8k 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
| 7.8k 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
| 3.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users