結果
問題 | No.803 Very Limited Xor Subset |
ユーザー |
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提出日時 | 2019-03-18 07:43:56 |
言語 | C++11 (gcc 13.3.0) |
結果 |
AC
|
実行時間 | 6 ms / 2,000 ms |
コード長 | 2,901 bytes |
コンパイル時間 | 1,328 ms |
コンパイル使用メモリ | 162,216 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-07-16 03:21:37 |
合計ジャッジ時間 | 2,501 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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>#define ADD(a, b) a = (a + ll(b)) % mod#define MUL(a, b) a = (a * ll(b)) % mod#define MAX(a, b) a = max(a, b)#define MIN(a, b) a = min(a, b)#define rep(i, a, b) for(int i = int(a); i < int(b); i++)#define rer(i, a, b) for(int i = int(a) - 1; i >= int(b); i--)#define all(a) (a).begin(), (a).end()#define sz(v) (int)(v).size()#define pb push_back#define sec second#define fst first#define debug(fmt, ...) Debug(__LINE__, ":", fmt, ##__VA_ARGS__)using namespace std;typedef long long ll;typedef unsigned long long ull;typedef pair<int, int> pi;typedef pair<ll, ll> pl;typedef pair<int, pi> ppi;typedef vector<int> vi;typedef vector<ll> vl;typedef vector<vl> mat;typedef complex<double> comp;void Debug() {cout << '\n'; }template<class FIRST, class... REST>void Debug(FIRST arg, REST... rest){cout<<arg<<" ";Debug(rest...);}template<class T>ostream& operator<<(ostream& out,const vector<T>& v) {out<<"[";if(!v.empty()){rep(i,0,sz(v)-1)out<<v[i]<<", ";out<<v.back();}out<<"]";return out;}template<class S, class T>ostream& operator<<(ostream& out,const pair<S, T>& v){out<<"("<<v.first<<", "<<v.second<<")";return out;}const int MAX_N = 300010;const int MAX_V = 100010;const double eps = 1e-6;const ll mod = 1000000007;const int inf = 1 << 30;const ll linf = 1LL << 60;const double PI = 3.14159265358979323846;///////////////////////////////////////////////////////////////////////////////////////////////////ll mod_pow(ll a, ll n) {if(n == 0) return 1;ll res = mod_pow(a, n / 2);if(n % 2 == 0) return res * res % mod;else return a * res % mod * res % mod;}int B[410][410];bool used[410];int N, M, X;void solve() {cin >> N >> M >> X;int S = max(30 + M, N);rep(i, 0, N) {int a; cin >> a;rep(j, 0, 30) {B[j][i] = ((1 << j) & a) ? 1 : 0;}}rep(j, 0, 30) B[j][S] = ((1 << j) & X) ? 1 : 0;rep(i, 0, M) {int e, l, r;cin >> e >> l >> r; l--;rep(j, l, r) B[i + 30][j] = 1;B[i + 30][S] = e;}// rep(i, 0, S) debug(vi(B[i], B[i] + S + 1));rep(i, 0, S) {int pivot = -1;rep(j, 0, S) {if(B[j][i] & !used[j]) pivot = j;}if(pivot == -1) continue;swap(B[i], B[pivot]);used[i] = true;rep(j, 0, S) {if(i != j && B[j][i]) {rep(k, 0, S + 1) B[j][k] ^= B[i][k];}}}// rep(i, 0, S) debug(vi(B[i], B[i] + S + 1));int r = 0;rep(i, 0, S) {if(B[i][i] == 1) r++;else {if(B[i][S]) r = -inf;}}if(r < 0) cout << 0 << "\n";else cout << mod_pow(2, N - r) << "\n";}int main() {#ifndef LOCALios::sync_with_stdio(false);cin.tie(0);#endifcout << fixed;cout.precision(20);srand((unsigned int)time(NULL));#ifdef LOCAL//freopen("in.txt", "wt", stdout); //for testerfreopen("in.txt", "rt", stdin);#endifsolve();#ifdef LOCALcerr << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";#endifreturn 0;}