#include "ethereum.h"
#include <algorithm>
using namespace std;
pair<long long, long long> extended_gcd(long long a, long long b) {
if (b == 0) return make_pair(1, 0);
pair<long long, long long> t = extended_gcd(b, a % b);
return make_pair(t.second, t.first - t.second * (a / b));
}
excinfo GetExchangePrice() {
excinfo A = Exchange(100000000);
excinfo B = Exchange(99999999);
long long p = A.BTC - B.BTC;
long long q = A.ETH - B.ETH;
excinfo ret;
if (p >= 0 && q <= 0){
auto v = extended_gcd(p,-q);
ret.BTC = v.first;
ret.ETH = -v.second;
}
else{
auto v = extended_gcd(-p,q);
ret.BTC = -v.first;
ret.ETH = v.second;
}
return ret;
}
