First guess is static 01234...

solver.cpp

@@ -18,6 +18,18 @@ Solver::Solver(int _N, int _M) : N(_N), M(_M) {
 }
 
 vector<int> Solver::guess() {
+	if(possible.size() == pow(M, N)) {
+		cout << "Picking first\n";
+		vector<int> pick(0);
+
+		int times = N / M + 1;
+		for(int i = 0; i < times; i++)
+			for(int j = 0; j < M && pick.size() < N; j++)
+				pick.push_back(j);
+
+		return pick;
+	}
+	
 	return minimax({}).guess;
 }
 void Solver::learn(vector<int> guess, Response response) {

solver.hpp

@@ -1,5 +1,6 @@
 #pragma once
 #include <set>
+#include <cmath>
 #include "global.hpp"
 
 using std::set;