1 like 1 dislike
7.5k 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 | 7.5k 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:172.70.50.26
©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
| 3.1k 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
| 13.3k 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
| 5.3k 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
| 5.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users