結果
問題 | No.2505 matriX cOnstRuction |
ユーザー |
|
提出日時 | 2023-02-14 19:36:49 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 4,173 bytes |
コンパイル時間 | 1,099 ms |
コンパイル使用メモリ | 98,188 KB |
最終ジャッジ日時 | 2025-02-10 15:19:05 |
ジャッジサーバーID (参考情報) |
judge1 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 1 WA * 63 |
ソースコード
#include <algorithm>#include <array>#include <cassert>#include <iostream>#include <limits>#include <tuple>#include <vector>int floor_pow2(int n) {int x = 1;while ((x << 1) <= n) x <<= 1;return x;}void println() {std::cout << '\n';}template <typename Head, typename ...Tails>void println(Head&& head, Tails &&...tails) {std::cout << std::forward<Head>(head);if constexpr (sizeof...(Tails)) {std::cout << ' ';}println(std::forward<Tails>(tails)...);}using Weight = long long;constexpr int L = 30;constexpr Weight inf = std::numeric_limits<int>::max();void solve(int n, int m, const std::vector<int>& r, const std::vector<int>& c, const std::vector<std::vector<int>>& a) {for (int i = 0; i < n; ++i) for (int j = 0; j < m; ++j) {if (a[0][0] ^ a[0][j] ^ a[i][0] ^ a[i][j]) {println(-1);return;}}// (l, r, w): add w to x in [l, r)std::vector<std::tuple<int, int, Weight>> costs;// add f(X) = W * [X ^ Y > Z]auto add_cost = [&](int Y, int Z, Weight W) {const int YZ = Y ^ Z;int l = 0, r = 1 << L;for (int bit = L - 1; bit >= 0; --bit) {int mid = (l + r) >> 1;if ((YZ >> bit) & 1) {if (not ((Z >> bit) & 1)) {costs.emplace_back(l, mid, W);}l = mid;} else {if (not ((Z >> bit) & 1)) {costs.emplace_back(mid, r, W);}r = mid;}}};for (int i = 0; i < n; ++i) {int Y = a[0][0] ^ a[i][0];if (r[i]) {add_cost(Y, 0, 1);add_cost(Y, r[i], 1);add_cost(Y, 2 * floor_pow2(r[i]) - 1, inf);} else {add_cost(Y, 0, inf);}}for (int j = 0; j < m; ++j) {int Y = a[0][j];if (c[j]) {add_cost(Y, 0, 1);add_cost(Y, c[j], 1);add_cost(Y, 2 * floor_pow2(c[j]) - 1, inf);} else {add_cost(Y, 0, inf);}}std::vector<int> xs { 0, 1 << L };for (auto [l, r, w] : costs) {xs.push_back(l);xs.push_back(r);}std::sort(xs.begin(), xs.end());xs.erase(std::unique(xs.begin(), xs.end()), xs.end());const int k = xs.size();std::vector<Weight> imos(k);for (auto [l, r, w] : costs) {imos[std::lower_bound(xs.begin(), xs.end(), l) - xs.begin()] += w;imos[std::lower_bound(xs.begin(), xs.end(), r) - xs.begin()] -= w;}for (int i = 1; i < k; ++i) {imos[i] += imos[i - 1];}std::pair<Weight, int> min_cost{ inf, 0 };for (int i = 0; i < k - 1; ++i) {min_cost = std::min(min_cost, std::make_pair(imos[i], xs[i]));}auto [cost, X] = min_cost;if (cost >= inf) {println(-1);return;}println(cost);std::vector<std::tuple<char, int, int>> ops;for (int i = 0; i < n; ++i) {int s = X ^ a[0][0] ^ a[i][0];if (s == 0) {continue;} else if (s <= r[i]) {println('r', i + 1, s);} else {int p = floor_pow2(r[i]);println('r', i + 1, p);println('r', i + 1, s ^ p);}}for (int j = 0; j < m; ++j) {int t = X ^ a[0][j];if (t == 0) {continue;} else if (t <= c[j]) {println('c', j + 1, t);} else {int p = floor_pow2(c[j]);println('c', j + 1, p);println('c', j + 1, t ^ p);}}}int main() {std::ios::sync_with_stdio(false);std::cin.tie(nullptr);int t;std::cin >> t;while (t-- > 0) {int n, m;std::cin >> n >> m;std::vector<int> r(n), c(m);for (auto& e : r) std::cin >> e;for (auto& e : c) std::cin >> e;std::vector a(n, std::vector<int>(m));for (auto& row : a) for (auto& e : row) {std::cin >> e;}solve(n, m, r, c, a);}return 0;}