output dt and nSteps

main.cpp

@@ -21,6 +21,9 @@ int main(int argc, char** argv) {
     double dt = 0.000005;
     unsigned nSteps = 120;
 
+    std::cout << "dt = " << dt << std::endl;
+    std::cout << "nSteps = " << nSteps << std::endl;
+
     nBodySim sim(datafile);
     // double* positions = sim.getPositions();
     unsigned N = sim.getNParticles();