1 like 1 dislike
6.7k 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 | 6.7k 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:172.69.214.39
©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
| 2.7k 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
| 11.8k 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
| 4.7k 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
| 4.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users