1 like 1 dislike
4.1k 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 | 4.1k 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:108.162.216.60
©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
| 1.7k 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
| 7.5k 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
| 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
| 3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users