TheAlgorithms-C-Plus-Plus/backtracking/minimax.cpp
Gleison Batista f740e1e7a1 Add minimax (#517)
* Add minimax

* Rename Backtracking/minimax.cpp to backtracking/minimax.cpp

* Wrap a long line
2019-12-07 08:21:23 +01:00

28 lines
700 B
C++

#include <cmath>
#include <iostream>
#include <vector>
using std::cout;
using std::endl;
using std::max;
using std::min;
using std::vector;
int minimax(int depth, int node_index, bool is_max, vector<int> scores,
int height) {
if (depth == height)
return scores[node_index];
int v1 = minimax(depth + 1, node_index * 2, !is_max, scores, height);
int v2 = minimax(depth + 1, node_index * 2 + 1, !is_max, scores, height);
return is_max ? max(v1, v2) : min(v1, v2);
}
int main() {
vector<int> scores = { 90, 23, 6, 33, 21, 65, 123, 34423 };
int height = log2(scores.size());
cout << "Optimal value: " << minimax(0, 0, true, scores, height) << endl;
}