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https://git.sb/baoshuo/OI-codes.git
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119 lines
2.4 KiB
C++
119 lines
2.4 KiB
C++
#include <iostream>
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#include <limits>
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#include <tuple>
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#include <vector>
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using std::cin;
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using std::cout;
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const char endl = '\n';
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const int N = 505,
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Q = 6e5 + 5;
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int n, q, ans[Q], tr[N][N];
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std::vector<std::tuple<int, int, int, int, int, int>> qs;
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int lowbit(int x) {
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return x & -x;
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}
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void add(int x, int y, int v) {
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for (int i = x; i <= n; i += lowbit(i)) {
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for (int j = y; j <= n; j += lowbit(j)) {
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tr[i][j] += v;
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}
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}
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}
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int query(int x, int y) {
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int res = 0;
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for (int i = x; i; i -= lowbit(i)) {
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for (int j = y; j; j -= lowbit(j)) {
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res += tr[i][j];
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}
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}
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return res;
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}
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void solve(const std::vector<std::tuple<int, int, int, int, int, int>> &qs, long long l, long long r) {
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if (qs.empty()) return;
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if (l == r) {
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for (auto o : qs) {
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if (std::get<5>(o)) {
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ans[std::get<5>(o)] = l;
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}
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}
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return;
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}
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long long mid = l + r >> 1;
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std::vector<std::tuple<int, int, int, int, int, int>> ql, qr;
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for (auto o : qs) {
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int x, y, a, b, k, id;
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std::tie(x, y, a, b, k, id) = o;
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if (id) {
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int t = query(a, b) - query(x - 1, b) - query(a, y - 1) + query(x - 1, y - 1);
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if (t >= k) {
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ql.emplace_back(o);
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} else {
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qr.emplace_back(x, y, a, b, k - t, id);
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}
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} else {
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if (k <= mid) {
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add(x, y, 1);
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ql.emplace_back(o);
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} else {
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qr.emplace_back(o);
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}
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}
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}
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for (auto o : ql) {
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int x, y, k, id;
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std::tie(x, y, std::ignore, std::ignore, k, id) = o;
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if (!id && k <= mid) add(x, y, -1);
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}
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solve(ql, l, mid);
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solve(qr, mid + 1, r);
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}
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int main() {
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std::ios::sync_with_stdio(false);
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cin.tie(nullptr);
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cin >> n >> q;
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for (int i = 1; i <= n; i++) {
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for (int j = 1, x; j <= n; j++) {
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cin >> x;
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qs.emplace_back(i, j, 0, 0, x, 0);
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}
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}
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for (int i = 1, x, y, a, b, k; i <= q; i++) {
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cin >> x >> y >> a >> b >> k;
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qs.emplace_back(x, y, a, b, k, i);
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}
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solve(qs, std::numeric_limits<int>::min(), std::numeric_limits<int>::max());
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for (int i = 1; i <= q; i++) {
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cout << ans[i] << endl;
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}
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return 0;
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}
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