1 like 1 dislike
10.5k 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 | 10.5k 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:162.159.115.10
©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
| 4.1k 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
| 17.2k 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
| 6.7k 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
| 7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users