1 like 1 dislike
12.2k 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 | 12.2k 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:104.23.197.94
©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
| 4.5k 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
| 18.8k 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
| 7.3k 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
| 7.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users