This documentation is automatically generated by online-judge-tools/verification-helper
View the Project on GitHub ebi-fly13/icpc_library
#define PROBLEM "https://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=1068" #include "../../data_structure/segtree.hpp" #include "../../data_structure/segtree_2d.hpp" #include "../../template/template.hpp" using namespace lib; int op(int a, int b) { return a < b ? a : b; } int e() { return std::numeric_limits<int>::max(); } int main() { int r, c, q; while (std::cin >> r >> c >> q, !(r == 0 && c == 0 && q == 0)) { segtree_2d<int, op, e, segtree<int, op, e>> seg2d(r, c); rep(i, 0, r) { rep(j, 0, c) { int grid; std::cin >> grid; seg2d.set(i, j, grid); } } while (q--) { int l, d, r, u; std::cin >> l >> d >> r >> u; r++; u++; std::cout << seg2d.prod(l, d, r, u) << '\n'; } } }
#line 1 "test/data_structure/aoj_1068.test.cpp" #define PROBLEM "https://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=1068" #line 2 "data_structure/segtree.hpp" #line 2 "template/template.hpp" #include <bits/stdc++.h> #define rep(i, s, n) for (int i = (int)(s); i < (int)(n); i++) #define rrep(i, s, n) for (int i = (int)(n)-1; i >= (int)(s); i--) #define all(v) v.begin(), v.end() using ll = long long; using ld = long double; using ull = unsigned long long; template <typename T> bool chmin(T &a, const T &b) { if (a <= b) return false; a = b; return true; } template <typename T> bool chmax(T &a, const T &b) { if (a >= b) return false; a = b; return true; } namespace lib { using namespace std; } // namespace lib // using namespace lib; #line 4 "data_structure/segtree.hpp" namespace lib { using namespace std; template <class S, S (*op)(S, S), S (*e)()> struct segtree { private: int n; int sz; vector<S> data; void update(int i) { data[i] = op(data[2 * i], data[2 * i + 1]); } public: segtree(int n) : segtree(vector<S>(n, e())) {} segtree(const vector<S> &v) : n((int)v.size()), sz(1) { while (sz < n) sz *= 2; data = vector<S>(2 * sz, e()); rep(i, 0, n) { data[sz + i] = v[i]; } rrep(i, 1, sz) update(i); } void set(int p, S x) { assert(0 <= p && p < n); p += sz; data[p] = x; while (p > 1) { p >>= 1; update(p); } } S get(int p) { assert(0 <= p && p < n); return data[p + sz]; } S prod(int l, int r) { assert(0 <= l && l <= r && r <= n); S sml = e(), smr = e(); l += sz; r += sz; while (l < r) { if (l & 1) sml = op(sml, data[l++]); if (r & 1) smr = op(data[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return data[1]; } template <class F> int max_right(int l, F f) { assert(0 <= l && l <= n); assert(f(e())); if (l == n) return n; l += sz; S sm = e(); do { while (l % 2 == 0) l >>= 1; if (!f(op(sm, data[l]))) { while (l < sz) { l = 2 * l; if (f(op(sm, data[l]))) { sm = op(sm, data[l]); l++; } } return l - sz; } sm = op(sm, data[l]); l++; } while ((l & -l) != l); return n; } template <class F> int min_left(int r, F f) { assert(0 <= r && r <= n); assert(f(e())); if (r == 0) return 0; r += sz; S sm = e(); do { r--; while (r > 1 && (r % 2)) r >>= 1; if (!f(op(data[r], sm))) { while (r < sz) { r = 2 * r + 1; if (f(op(data[r], sm))) { sm = op(data[r], sm); r--; } } return r + 1 - sz; } sm = op(data[r], sm); } while ((r & -r) != r); return 0; } }; } // namespace lib #line 2 "data_structure/segtree_2d.hpp" #line 4 "data_structure/segtree_2d.hpp" namespace lib { template <class S, S (*op)(S, S), S (*e)(), class data_structure> struct segtree_2d { private: public: segtree_2d(int h, int w) : h(h), w(w), sz(1) { while (sz < h) sz <<= 1; data = std::vector<data_structure>(2 * sz, data_structure(w)); } void set(int i, int j, S x) { assert(0 <= i && i < h && 0 <= j && j < w); i += sz; data[i].set(j, x); while (i > 1) { i >>= 1; S val = op(data[2 * i].get(j), data[2 * i + 1].get(j)); data[i].set(j, val); } } S get(int i, int j) { assert(0 <= i && i < h && 0 <= j && j < w); return data[i + sz].get(j); } S prod(int l, int d, int r, int u) { assert(0 <= l && l <= r && r <= h); assert(0 <= d && d <= u && u <= w); l += sz; r += sz; S res = e(); while (l < r) { if (l & 1) res = op(res, data[l++].prod(d, u)); if (r & 1) res = op(data[--r].prod(d, u), res); l >>= 1; r >>= 1; } return res; } private: int h, w; int sz; std::vector<data_structure> data; }; } // namespace lib #line 6 "test/data_structure/aoj_1068.test.cpp" using namespace lib; int op(int a, int b) { return a < b ? a : b; } int e() { return std::numeric_limits<int>::max(); } int main() { int r, c, q; while (std::cin >> r >> c >> q, !(r == 0 && c == 0 && q == 0)) { segtree_2d<int, op, e, segtree<int, op, e>> seg2d(r, c); rep(i, 0, r) { rep(j, 0, c) { int grid; std::cin >> grid; seg2d.set(i, j, grid); } } while (q--) { int l, d, r, u; std::cin >> l >> d >> r >> u; r++; u++; std::cout << seg2d.prod(l, d, r, u) << '\n'; } } }