func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxN = 5;   long double x[maxN], y[maxN], r[maxN], val[maxN];   long double f(long double xx, long double yy) {     for (int i = 0; i < 3; ++i) {       val[i] = sqrt((x[i] - xx) * (x[i] - xx) + (y[i] - yy) * (y[i] - yy)) / r[i];     }     val[3] = val[0];     long double answer = 0;     for (int i = 0; i < 3; ++i)       answer += (val[i] - val[i + 1]) * (val[i] - val[i + 1]);     return answer;   }   int main() {     for (int i = 0; i < 3; ++i) cin >> x[i] >> y[i] >> r[i];     long double pX = (x[0] + x[1] + x[2]) / 3., pY = (y[0] + y[1] + y[2]) / 3.;     long double qq = 1.;     while (qq > 1e-5) {       if (f(pX - qq, pY) < f(pX, pY))         pX -= qq;       else if (f(pX + qq, pY) < f(pX, pY))         pX += qq;       else if (f(pX, pY - qq) < f(pX, pY))         pY -= qq;       else if (f(pX, pY + qq) < f(pX, pY))         pY += qq;       else         qq *= 0.777777777;     }     if (f(pX, pY) > 1e-5) return 0;     cout << fixed << setprecision(15) << pX <<     << pY << endl;     return 0;   }   