結果
問題 | No.2505 matriX cOnstRuction |
ユーザー |
|
提出日時 | 2023-02-14 20:25:53 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
(最新)
J_ERR
(最初)
|
実行時間 | - |
コード長 | 2,708 bytes |
コンパイル時間 | 1,270 ms |
コンパイル使用メモリ | 80,296 KB |
最終ジャッジ日時 | 2025-02-10 15:25:14 |
ジャッジサーバーID (参考情報) |
judge3 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | WA * 35 TLE * 29 |
ソースコード
#include <array>#include <cassert>#include <iostream>#include <limits>#include <tuple>#include <vector>long long floor_pow2(long long n) {long long 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 = 60;constexpr Weight inf = std::numeric_limits<int>::max();void solve(int n, int m, const std::vector<long long>& r, const std::vector<long long>& c, const std::vector<std::vector<long long>>& 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;}}int bit_num = 0;for (int i = 0; i < n; ++i) for (int j = 0; j < m; ++j) {bit_num = std::max(bit_num, __builtin_ctzll(floor_pow2(a[i][j])) + 1);}std::pair<Weight, long long> min_cost{ inf, 0 };for (long long x = 0; x < 1LL << bit_num; ++x) {Weight cost = 0;for (int i = 0; i < n; ++i) {long long s = x ^ a[i][0] ^ a[0][0];if (s == 0) {continue;} else {cost += 1;}}for (int j = 0; j < m; ++j) {long long t = x ^ a[0][j];if (t == 0) {continue;} else {cost += 1;}}min_cost = std::min(min_cost, std::pair{ cost, x });}auto [cost, X] = min_cost;if (cost >= inf) {println(-1);return;}println(cost);for (int i = 0; i < n; ++i) {long long s = X ^ a[0][0] ^ a[i][0];if (s == 0) {continue;} else {println('r', i + 1, s);}}for (int j = 0; j < m; ++j) {long long t = X ^ a[0][j];if (t == 0) {continue;} else {println('c', j + 1, t);}}}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<long long> r(n), c(m);for (auto& e : r) std::cin >> e;for (auto& e : c) std::cin >> e;std::vector a(n, std::vector<long long>(m));for (auto& row : a) for (auto& e : row) {std::cin >> e;}solve(n, m, r, c, a);}return 0;}