fix warning

TP2/src/mybt.cpp

@@ -204,9 +204,19 @@ bt_move_t bt_t::get_mcts_move(double max_time) {
   tree->wins = 0;
 
   // MCTS
-  auto delta = std::chrono::duration<double>();
-  while (delta.count() < max_time) {
-    std::cerr << delta.count() << "\n";
+  auto now = std::chrono::steady_clock::now();
+  std::chrono::duration<double> elapsed{};
+  while (elapsed.count() < max_time) {
+    // Selection
+
+    // Expansion
+
+    // Simulation
+
+    // Update
+
+    // Time constraint
+    elapsed = std::chrono::steady_clock::now() - now;
   }
 
   // Select best move