1 like 1 dislike
7.2k 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 | 7.2k 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:172.69.130.52
©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
| 3k 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
| 12.9k 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
| 5.1k 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
| 5.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users