1 like 1 dislike
9.4k 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 | 9.4k 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:104.23.243.164
©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
| 3.8k 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
| 15.6k 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
| 6.3k 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
| 6.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users