結果
問題 | No.803 Very Limited Xor Subset |
ユーザー |
![]() |
提出日時 | 2019-03-18 15:56:42 |
言語 | C++11 (gcc 13.3.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 4,119 bytes |
コンパイル時間 | 1,416 ms |
コンパイル使用メモリ | 169,496 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-18 10:33:03 |
合計ジャッジ時間 | 2,613 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 43 |
ソースコード
#include <bits/stdc++.h>using namespace std;//#define DEBUG_MODE#define endl '\n'#ifdef DEBUG_MODE#define DEBUG(X) debug_func(X, #X)#define DEBUG_ENDL endl << flush#define DEBUG_SEPARATOR_LINE cout<<"=================\n"#else#define DEBUG(X) 0#define DEBUG_ENDL 0#define DEBUG_SEPARATOR_LINE 0#endif#define ALL(V) (V).begin(), (V).end()#define ALLR(V) (V).rbegin(), (V).rend()#define DEBUG_ENDL_S(S) ((S).size() ? "\n" : "") << flush;template <typename T> using V = vector<T>;template <typename T> using VV = V<V<T>>;template <typename T, typename U> using P = pair<T, U>;using ll = int64_t;using PLL = P<ll, ll>;template <typename T> const T& var_min(const T &t) { return t; }template <typename T> const T& var_max(const T &t) { return t; }template <typename Head, typename... Tail> const Head& var_min(const Head &head, const Tail&... tail) { return min(head, var_min(tail...)); }template <typename Head, typename... Tail> const Head& var_max(const Head &head, const Tail&... tail) { return max(head, var_max(tail...)); }template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); }template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); }void debug_func_preffix(const string &s) { if(s.size()) cout << s << " = "; }template <typename T>void debug_func(const T &t, const string &s = "") {debug_func_preffix(s);cout << t << DEBUG_ENDL_S(s);}template <typename T, typename U>void debug_func(const P<T, U> &p, const string &s = "") {debug_func_preffix(s);cout << "(";debug_func(p.first);cout << ", ";debug_func(p.second);cout << ")" << DEBUG_ENDL_S(s);}template <typename T>void debug_func(const V<T> &v, const string &s = "") {for(ll i = 0; i < v.size(); i++) {string t = s + "[" + to_string(i) + "]";debug_func(v[i], t);}}void init_io() {cin.tie(0);ios_base::sync_with_stdio(false);cout << fixed << setprecision(30);}using BS = bitset<512>;using Matrix = V<BS>;const ll MOD = 1e9 + 7;tuple<Matrix, BS, ll> gauss_elim(Matrix mat, BS b, ll dim) {ll fcnt = 0;ll upper_row = 0;for(ll col = 0; col < dim; col++) {ll row = -1;for(ll r = upper_row; r < mat.size(); r++) {if(mat[r].test(col)) {row = r;break;}}if(row == -1) {fcnt++;continue;}swap(mat[upper_row], mat[row]);bool tmp = b[upper_row];b.set(upper_row, b[row]);b.set(row, tmp);for(ll r = 0; r < mat.size(); r++) {if(r == upper_row) continue;if(!mat[r].test(col)) continue;mat[r] ^= mat[upper_row];bool tmp = b[r] ^ b[upper_row];b.set(r, tmp);}upper_row++;}return make_tuple(mat, b, fcnt);}ll calc(Matrix mat, BS b, ll dim) {auto tmp = gauss_elim(mat, b, dim);Matrix gmat;BS gb;ll fcnt;tie(gmat, gb, fcnt) = tmp;DEBUG(dim);DEBUG(fcnt);#ifdef DEBUG_MODEfor(ll i = 0; i < gmat.size(); i++) cout << gmat[i].to_string() << " = " << (gb[i] ? 1 : 0) << endl;#endiffor(ll i = 0; i < gmat.size(); i++) if(!gmat[i].any() && gb.test(i)) return 0;ll ret = 1;for(ll i = 0; i < fcnt; i++) (ret *= 2) %= MOD;return ret;}int main() {init_io();ll N, M, X;cin >> N >> M >> X;BS b(X);Matrix mat(60 + M, BS(0));ll dim = N;for(ll i = 0; i < N; i++) {ll A;cin >> A;BS ab(A);for(ll dig = 0; dig < 60; dig++) mat[dig][i] = ab.test(dig);}for(ll i = 0; i < M; i++) {ll type, l, r;cin >> type >> l >> r;l--;r--;for(ll j = l; j <= r; j++) mat[i + 60].set(j);b.set(i + 60, !!(type));}#if 0#ifdef DEBUG_MODEfor(ll i = 0; i < mat.size(); i++) cout << mat[i].to_string() << " = " << (b[i] ? 1 : 0) << endl;#endif#endifcout << calc(mat, b, dim) << endl;return 0;}