出个数据给我人出麻了

#include<bits/stdc++.h>
#define int long long
using namespace std;
int f1,f2,a,b;
signed main()
{
	mt19937 rng(random_device{}());
//	cin >> f1 >> f2 >> a >> b;
	f1 = rng() % 100001;
	f2 = rng() % 100001;
	a = rng() % 181;
	b = rng() % 181;
	int k = abs(a - b);
	cout << f1 << " " << f2 << " " << a << " " << b << endl;
	long double h = (180 - k) * 1.0 / 180 * 1.0 * 3.1415926;
	printf("%.6Lf\n",sqrt(f1 * f1 * 1.0 + f2 * f2 * 1.0 - 2 * f1 * f2 * cos(h) * 1.0));
	return 0;
}