파스칼삼각형/Leonardong

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~cpp 
#include <iostream>
using namespace std;
int Pas(int, int);

int main()
{
	int x,y;
	cin >> x >> y;
	cout << Pas(x,y);

	return 0;
}

int Pas(int x, int y)
{
	if (y==1)
		return 1;
	if (x==y)
		return 1;
	return Pas(x-1, y-1)+Pas(x-1, y);
}