1
 实现代码：
 #include <iostream>
 2 using namespace std;
 3 
 4 void exgcd(long long a, long long b, long long &d, long long &x, long long &y) {
 5     if (b == 0) {
 6         d = a, x = 1, y = 0;
 7     }
 8     else {
 9         exgcd(b, a%b, d, y, x); y-=a/b*x;
10     }
11 }
12 
13 int main() {
14     long long a, b, d, x, y;
15     while (cin >> a >> b) {
16         exgcd(a, b, d, x, y);
17         cout << d << " " << x << " " << y << endl;
18     }
19 
20 }