1 like 1 dislike
7.9k 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 | 7.9k 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:172.69.7.78
©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
| 3.4k 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
| 14k 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
| 5.6k 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
| 5.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users