1 like 1 dislike
7.5k 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 | 7.5k 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:172.70.80.44
©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
| 3.2k 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
| 13.4k 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
| 5.3k 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
| 5.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users