1 like 1 dislike
10.2k 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 | 10.2k 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:104.23.243.108
©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
| 4k 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
| 16.9k 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
| 6.6k 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
| 6.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users