#include <bits/stdc++.h> #include "game.h" using namespace std; int n, m; vector<array<int, 2>> pos; vector<vector<long long>> a; void init(int R, int C) { n = R; m = C; a.resize(n, vector<long long>(m)); } void update(int i, int j, long long k) { a[i][j] = k; pos.push_back({i, j}); } long long calculate(int p, int q, int u, int v) { long long ans = 0; for (auto [i, j] : pos) { if (p <= i && i <= u && q <= j && j <= v) { ans = gcd(ans, a[i][j]); } } return ans; }