#include #include #include #include #include #include #include #include #include #define L64 long long #define MOD (1000000007LL) L64 getnum(L64 a, L64 b, L64 c, long double min, long double max, bool inv) { long double da, db, dc; da = a; db = b; dc = c; while(0.1 <= max - min){ long double mid = (min + max) / 2.0; long double dx = mid; long double p = dc + dx * (db + dx * (da + dx)); if(inv){ if(0 < p){ min = mid; } else { max = mid; } } else { if(p < 0){ min = mid; } else { max = mid; } } } if(0 <= max){ return max + 0.1; } else { return min - 0.1; } } int main(void) { L64 a, b, c; L64 alpha, beta, gamma; std::cin >> a >> b >> c; double da, db, dc; da = a; db = b; dc = c; //x = (1/3)(-a +- sqrt(a^2-3b) ) double tgt1, tgt2; tgt1 = (1 / 3.0) * (-da - std::sqrt(da * da - 3 * db)); tgt2 = (1 / 3.0) * (-da + std::sqrt(da * da - 3 * db)); alpha = getnum(a, b, c, -1000000000, tgt1, false); beta = getnum(a, b, c, tgt1, tgt2, true); gamma = getnum(a, b, c, tgt2, 1000000000, false); std::cout << alpha << " " << beta << " " << gamma << std::endl; }