oj.uz

답안 #329325

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
329325 2020-11-20T15:16:03 Z HoneyBadger Snake Escaping (JOI18_snake_escaping) C++17
0 / 100
 40 ms 65540 KB 
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <vector>
#include <bitset>
#include <string>
#include <cstring>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
#include <utility>
#include <algorithm>
#include <random>
#include <cmath>
#include <cassert>
#include <climits>
#include <ctime>
#include <chrono>
#include <unordered_map>


#pragma GCC optimize("Ofast")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,tune=native")



#ifdef LOCAL
    #define dbg(x) cout << #x << " : " << x << endl;
#else
    #define dbg(x)
#endif

#define pb push_back
#define ppb pop_back()
#define mp make_pair
#define fi(a, b) for (int i = a; i < b; i++)
#define fj(a, b) for (int j = a; j < b; j++)
#define fk(a, b) for (int k = a; k < b; k++)
#define fi1(a, b) for (int i = a - 1; i >= b; i--)
#define fj1(a, b) for (int j = a - 1; j >= b; j--)
#define fk1(a, b) for (int k = a - 1; k >= b; k--)
#define fx(x, a) for (auto& x : a)
#define rep(i, a, b) for (int i = a; i < b; ++i)
#define rep1(i, a, b) for (int i = a - 1; i >= b; --i)
#define siz(x) (int)x.size()
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()

using namespace std;

template<typename T1, typename T2>inline void mine(T1 &x, const T2 &y) { if (y < x) x = y; }
template<typename T1, typename T2>inline void maxe(T1 &x, const T2 &y) { if (x < y) x = y; }

ostream& operator << (ostream &out, const vector<int> &b) {
    for (auto k : b) out << k << ' ';
    return out;
}

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef char ch;
typedef string str;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pii> vpii;
typedef vector<vpii> vvpii;
typedef vector<ch> vch;
typedef vector<vch> vvch;
typedef vector<str> vs;



const int MOD = 1000000007;
const int INF = 1000000050;
const long long BIG = (long long)2e18 + 50;
const double EPS = 1e-9;


mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());


int n, q;
ll pw3[21];
int a[1 << 20];

unordered_map<ll, int> ht;
void init() {
    pw3[0] = 1;
    fi(1, 21) pw3[i] = pw3[i - 1] * 3;
    ht.reserve(1 << 23);
    ht.max_load_factor(0.25);
}

//warinig pos3.size() <= BUBEN slow

int get(ll mask3, int mask2, vi &pos3) {
	if (pos3.empty()) 
		return a[mask2];
	auto it = ht.find(mask3);
	if (it == ht.end()) {
		int i = pos3.back();
		pos3.ppb;
		int res = get(mask3 - pw3[i], mask2 ^ (1 << i), pos3) + get(mask3 - 2 * pw3[i], mask2, pos3);
		pos3.pb(i);
		ht[mask3] = res;
		return res;
	} else {
		return it->second;
	}
}

int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    init();

    cin >> n >> q;
    for (int i = 0; i < (1 << n); ++i) {
    	char c;
    	cin >> c;
    	a[i] = c - '0';
    }
    while (q--) {
    	vi pos3;
    	ll mask3 = 0;
    	int mask2 = 0;
    	fi(0, n) {
    		char c;
    		cin >> c;
    		if (c == '1') {
    			mask2 += 1 << (n - i - 1);
    			mask3 += 1 * pw3[n - i - 1];
    		} else if (c == '?') {
    			mask3 += 2 * pw3[n - i - 1];
    			pos3.pb(n - i - 1);
    		}	
    	}
    	cout << get(mask3, mask2, pos3) << '\n';
    }
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 40 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 40 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 40 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 40 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 40 ms 65540 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -