1 like 1 dislike
12.2k 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 | 12.2k 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:104.23.243.109
©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
| 4.5k 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
| 18.9k 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
| 7.3k 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
| 7.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users