1 like 1 dislike
5.7k 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 | 5.7k views

36 Answers

0 like 0 dislike
Hidden content!
#include <stdio.h>
#include ** * * ***** ***

int main()
{
** * * **** ** * a,b,i,gcd,lcm;
** * **** *** *** * ** **** ***** * *** * ** *** ** ** *
* ** * * **** * ** * * * *
* * **** * ** *** *
* * ** * *** ** ***   * *** * ** * * *** **
** * *** * * * * * *   gcd=i;
** *** * * * ** *
* * * * * ** ** * ***** ** *** * *
** * *** * * * * ** ******
* * * ** ** *** * * ** * ** %d",gcd,lcm);
** ** * ** *** 0;
}
answered by (-258 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 (void)
{
** * * ** ** ** ** * * a,b,c,d;
*** * * * **** * *** * * %d",&a,&b);
* **** ** *** * ** ***
* *** * * ** * * *** *
* * ** * * ** ** * * ** && b>0){
* *** * **** ** * ** *** * * * * *
* * ** * * *** * * ** * *** ***** ** *
* * **** ** * * * ****
**** ** ** * **** ***** *
*** * * * ****** ** ** ** * * ***** = b%a;
** * ** ** ** *** **
* * ** * * * * * *
** * ** * * a == 0 ) {
* *** * *** * ** ** * * * ** * * * **** *** * *** %d",b,c*d/b);
**** * * *** ****** *
* ** * *** * * * ** * {
* ** * *** * * ** * * ** * ** * ***** ** ******* %d",a,c*d/a);
** * * **** * * ***
}
answered by (-204 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!
* * ** * * * * * *


main()
{
int **** ******
***** ** *** * * *
* * * * *** * ****
* ******
{
* * * * * * ** * * *
** ** **** * ** * *
* *** * ** ****** ** * *
}

k==a%b;
m==b%c;

for(k==0)
{
* * ** *** = * ** ** *
}
***** * * * *
** * * * * *** * * ***
*** * * *** * ***** **


return 0;
}
answered by (-32 points)
0 0
prog.c:4:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~
prog.c: In function 'main':
prog.c:8:9: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
 scanf("%d %d",a,b);
         ^
prog.c:8:12: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'int' [-Wformat=]
 scanf("%d %d",a,b);
            ^
prog.c:19:9: error: expected ';' before ')' token
 for(k==0)
         ^
prog.c:19:9: error: expected expression before ')' token
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main(void)
{
** ****** * * *** ** a,b,i,j,d,k,Z;
** * ****** * ** **** * L1,L2;

* * * * * * * *** * * * * ** *** * %d",&a,&b);


** ** ** * * * ** ** * ** * * * 28
    {
* * *** *** ** * * * ** *** *** ***** && b%i==0 )
* * *** ** * **** * * * * *** ** * ** * ***** * **
* *** * ** * *** *** * ** ** ** ** * * * *** * * * *** ***** ******* ** * *
* *** ** * * * * ** *** **** * * *** ** * * ** *

    }
* ** * * * ***** *** ** * * * *
* * * ******** ** * * *** ** *
** * ****** ** ** ******
* **** * * ** * * *** * * * ** ***
** **** * **** * * ** * * ** ** ********* *** * *
* **** ** **** ******** ** ***
*** *** *** * * * * * * (L1==L2)
* ** *** * * ** ** * * * * *** * **




* **** * * ** ** *** * * 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 <stdlib.h>



int main()

{
** ****** * ** **** **** * a,b,c,d,min,max,e,f;
* ** ** * * **** * * ** * ***** * * * * * *
** ** * ** **** ***** * * ** * ***

    {
* *** ** * ** **** * * * * ****** ** ***** * *** * * * * *
** * *** ** * * * * ** *** *** * *
* * ** *** ***** ****** * * * * **** * *** * * **** * ***** **** * ** *
** *** *** **** * * ** * * ***** * ** *** * ** * ** * * ** * * * ** * *** ***
** ** *** **** ** * * * * **** * * ****** ** **

    }
* * **** *** * ** * * * * *

    {
** *** ** *** ** * * ** * ** ***** * **** * * * *
* ** * ** * * ** * * **** * ** ** ** *** **

    }
* * * * * ** ** ** * * * ** *** ** *

    {
* * * * *** *** *** *** ** * ** * * ** ** **** * ** * **** *
* * *** ** * * ** **** ***** *******
* * * ** **** * * * ** * ** **** * * **** ** ***** * **** * * *****
** * * * ***** * * ******** * ** * ***** ** * * * * * **
* * * ** *** ** ** **** ** * * * * ***

    }
* ** ** ** *** *** *** * %d",min,max);
** * **** * * ** * ** * * * 0;

}
[] - answered by (-498 points)
ID: 33638 - Available when: Unlimited - Due to: Unlimited

edited by
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(void)
{
*** *** * * ** ** **** a,b,i,j,d,k;
******** * ** * ** ** *** *** L1,L2;

**** ***** * * * * * *** * * **** %d",&a,&b);


* * ** * ** **** * *** ** 28
    {
** * * *** * **** * * *** *** * ** && 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>
int main(void)
{
** ** **** ** * * *** a,b,i,j,d,k;
* * * ***** * * * L1,L2;

*** * ********** * ** *** *** **** ** %d",&a,&b);


* ** *** ***** ** **** * ** * * *** * 28
    {
** * **** * * ** * *** ** * * **** ** *** * *** && 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!
* * * *** * * * *
int main(void){
int * ***** *
* **** * ** ** **** * * ** *
* **** * * * ***** *** **** *
{
* ** *** * ** * * * ********* * ** * **
**** *** * * * * ** **
}
lcm=n*n2/gcd;
* **** * * * * ** * *****
return 0;

}
answered by (-167 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!
* *** *** * *** ** ****
int main(void){
int * * * ***
* * *** * * ** * **** *** *
** ** * * ** * ** ** **** * ** * *
{
*** * ***** *** **** * ** * * *** * ** *
** * * *** * * ** * * ***
}
lcm=n1*n2/gcd;
***** *** * ** ****
return 0;

}
answered by (-32 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()
{
    int a,b,c,d,e;
* * *** ** * * ******** **** ** * %d",&a,&b);
**** ***** * * ** * **
*** * ** * * ****** *
* * ** * * ** ** **** * * *
    {
* ** * ** ** * ** * * **** **** * ***** **********
* *** ******* *** ** * *** ** * ** ** ***
*** * **** * * * ** *** * * * ** * **** * ***** **
** * * * ** *** **** * * * * ** ** * ** * * *** * * * ** * *
* ** * * * ** ** * * * *** * * * ** *** *** ** *
* **** ** *** * * * * * ** * * * ***** * * *** **** * * * ** *** %d",e,(a*b)/e);
* * *** *** * ** * * * ** * * ***
    }
** * **** * * ** * **
    {
* **** * * * ** *** ** * ** ** ** * *** ** * * *
** * * * * * *** * ****** ***** * * * * **
*** ** ** * * *** * * * ** ** **** * ** * * * ** *
** ** * * * * * * * *** * ** * ** *** ***** * * ** *
******* **** ** * *** * * * ** ** *** * ** * **** * * * * ****
* ** ** ** **** * * **** ** * * * * ** * * ****** * ** *** * * %d",d,(a*b)/e);
*** **** * *** * * * *** * *** ***
    }

}
answered by (-255 points)
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.179.216
©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
| 2.3k 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
| 10k 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
| 3.9k 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
| 3.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users