麻烦各位帮我挑一下错！

[hcwsdiy]

这是一个求两个正数的最大公约数与最小公倍数的和序，
麻烦各位帮我挑一下错！
#include<iostream>
using namespace std;
int maxy(int x,int y)
{
int r;
do{r=x%y;
y=x;
x=r;
}while(r!=0);
return y;
}
int minb(int x,int y)
{
return x*y/maxy(x,y);
}
void main()
{int a,b;
do{cout<<"input 2 num:\n";
cin>>a>>b;
}while(a<0&&b<0);
if(a<b) {a=a+b;b=a-b;a=a-b;}
cout<<"maxy(a,b)="<<maxy(a,b)<<endl;
cout<<"minb(a,b)="<<minb(a,b)<<endl;
}

[caicm8403]

啊，是c++
偶还没学到

[Supper_Jerry]

#include <iostream> 
using namespace std; 
int minb(int x,int y) 
{ 
	int r; 
	do{r=x%y; 
	y=x; 
	x=r; 
	}while(r!=0); 
	return  y; 
} 
int maxy(int x,int y) 
{ 
	return x*y/minb(x,y); 
} 
void main() 
{
	int a,b; 
	do{
		cout <<"input 2 num:\n"; 
		cin>>a>>b; 
	}while(a <0&&b <0); 
	if(a <b) {a=a+b;b=a-b;a=a-b;} 
	cout <<"maxy(a,b)=" <<maxy(a,b) <<endl; 
	cout <<"minb(a,b)=" <<minb(a,b) <<endl; 
}

两个函数弄反了

[sreamy]

你运行过了没，错误的提示能贴上来不

[p0303230]

#include <iostream> 
using namespace std; 
int maxy(int x,int y) 
{ 
int r; 

do{r=x%y; 
   x=y;   //改过
   y=r;   //改过
   }while(r!=0); 
return  x; //改过
} 
int minb(int x,int y) 
{ 
return x*y/maxy(x,y); 
} 
void main() 
{int a,b; 
do{cout <<"input 2 num:\n"; 
  cin>>a>>b; 
}while(a <= 0&&b <= 0); 
    if(a <b) {a=a+b;b=a-b;a=a-b;} 
int k = maxy(a,b);
cout <<"maxy(a,b)=" << k <<endl; 
cout <<"minb(a,b)=" <<minb(a,b) <<endl; 
system("PAUSE");
}

[p0303230]

while(a <= 0&&b <= 0); 

[sun420]

#include <iostream> 
using namespace std; 
int maxy(int x,int y) 
{ 
	int r; 
	while(y!=0)
	{	
		r=x%y; 
		x=y; 
		y=r; 
    }
	return  x; 
} 

int minb(int x,int y) 
{ 
	return x*y/maxy(x,y); 
} 

void main() 
{
	int a,b; 
	do
	{
		cout <<"input 2 num:\n"; 
		cin>>a>>b; 

	}while(a <0&&b <0); 

    if(a <b)
	{
		a=a+b;
		b=a-b;
		a=a-b;
	} 

	cout <<"maxy(a,b)=" <<maxy(a,b) <<endl; 
	cout <<"minb(a,b)=" <<minb(a,b) <<endl; 
}

你的求最大公约数的函数有问题，现在好了

[ttlyfast]

接分

[hcwsdiy]

没有错误提示，当输入 16 31时就出错！

[hcwsdiy]

多谢！！！！