oj.uz

Submission #122557

# Submission time Handle Problem Language Result Execution time Memory
122557 2019-06-28T15:32:38 Z egorlifar Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 2000 ms 23832 KB 
/*
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 */
#include <iostream>
#include <complex>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <numeric>
#include <cstring>
#include <ctime>
#include <cstdlib>
#include <set>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <cmath>
#include <bitset>
#include <cassert>
#include <queue>
#include <stack>
#include <deque>
    
     
using namespace std;
template<typename T1, typename T2>inline void chkmin(T1 &x, T2 y) { if (x > y) x = y; }
template<typename T1, typename T2>inline void chkmax(T1 &x, T2 y) { if (x < y) x = y; } 
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const pair<T, U> &_p) { _out << _p.first << ' ' << _p.second; return _out; }
template<typename T, typename U> inline istream &operator>> (istream &_in, pair<T, U> &_p) { _in >> _p.first >> _p.second; return _in; }
template<typename T> inline ostream &operator<< (ostream &_out, const vector<T> &_v) { if (_v.empty()) { return _out; } _out << _v.front(); for (auto _it = ++_v.begin(); _it != _v.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline istream &operator>> (istream &_in, vector<T> &_v) { for (auto &_i : _v) { _in >> _i; } return _in; }
template<typename T> inline ostream &operator<< (ostream &_out, const set<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const multiset<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const unordered_set<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const unordered_multiset<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const map<T, U> &_m) { if (_m.empty()) { return _out; } _out << '(' << _m.begin()->first << ": " << _m.begin()->second << ')'; for (auto _it = ++_m.begin(); _it != _m.end(); ++_it) { _out << ", (" << _it->first << ": " << _it->second << ')'; } return _out; }
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const unordered_map<T, U> &_m) { if (_m.empty()) { return _out; } _out << '(' << _m.begin()->first << ": " << _m.begin()->second << ')'; for (auto _it = ++_m.begin(); _it != _m.end(); ++_it) { _out << ", (" << _it->first << ": " << _it->second << ')'; } return _out; }
#define sz(c) (int)(c).size()
#define all(c) (c).begin(), (c).end()
#define rall(c) (c).rbegin(), (c).rend()
#define left left228
#define right right228
#define next next228
#define rank rank228
#define prev prev228
#define y1 y1228                                                         
#define read(FILENAME) freopen((FILENAME + ".in").c_str(), "r", stdin)
#define write(FILENAME) freopen((FILENAME + ".out").c_str(), "w", stdout)
#define files(FILENAME) read(FILENAME), write(FILENAME)
#define pb push_back
const string FILENAME = "input";


int l, q;
string s;
char c[1 << 20];
int ans[1594329];
int who[1000228];
int dp[1594329];
int pos[1594329];
long long g[30];
bool bad[1594329];
int prefs[1594329];
int kt[1594329];

long long get(string s) {
	int it = 0;
	long long res = 0;
	for (auto x: s) {

		if (x == '?') {
			res += g[it] * 2;
		} else {
			res += g[it] * (x - '0');
		}
		it++;
	}
	return res;
}


int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	//read(FILENAME);
	cin >> l >> q;
	cin >> s;
	for (int i = 0; i < (1 << l); i++) {
		c[i] = s[i] - '0';
	}
	int t = 1;
	for (int i = 0; i < l - 8; i++) {
		t *= 3;
	}
		g[0] = 1;
	for (int i = 1; i <= 20; i++) {
		g[i] = g[i - 1] * 3;
	}
	if (l <= 8) {
		t = 1;
		for (int i = 0; i < l; i++) {
			t *= 3;
		}
		for (int mask = 0; mask < t; mask++) {
	        int id = mask;
	        bool was = false;
	        int cur = 0;
	        int r = 0;
	        int cur1 = 0;
	        int g = 1;
	        for (int t = 0; t < l; t++) {
	            int s = id % 3;
	            if (was) {
	                cur += s * g;
	                cur1 += s * g;
	            } else {
	                if (s == 2) {
	                    was = true;
	                    cur += 0 * g;
	                    cur1 += 1 * g;
	                } else {
	                    cur += s * g;
	                    cur1 += s * g;
	                    if (s) {
	                        r += (1 << (l - t - 1));
	                    }
	                }
	            }
	            id /= 3;
	            g *= 3;
	        }
	        if (!was) {
	            ans[mask] = c[r];
	        } else {
	            ans[mask] = ans[cur] + ans[cur1];
	        }
	    }
	    for (int it = 0; it < q; it++) {
	    	string k;
	    	cin >> k;
	        int x = get(k);
	      //  cout << "opa" << endl;
	        cout << ans[x] << '\n';
	    }   
	    return 0;
	}
	
	for (int it = 0; it < q; it++) {
		string f;
		cin >> f;
		long long x;
		x = get(f);
		vector<char> st;
		for (int i = 0; i < l; i++) {
			st.pb(x % 3);
		//	cout << (int)st.back() << '\n';
			x /= 3;
		}
		reverse(all(st));
		int cur = 1;
		for (int i = 8; i < l; i++) {
			who[it] += (int)st[i] * cur;
			cur *= 3;
		}
		for (int i = 0; i < 8; i++) {
			prefs[it] += (int)st[i] * g[i];
		}
	}	
	for (int i = 0; i < l - 8; i++) {
		for (int pre = 0; pre < (1 << i); pre++) {
			int rpre = 0;
			for (int k = 0; k < i; k++) {
				if (pre & (1 << k)) {
					rpre += g[k];
				}
			}
			for (int suff = 0; suff < g[l - 8 - i - 1]; suff++) {
				pos[rpre + 2 * g[i] + suff * g[i + 1]] = i + 1;
			}
		}
	}
	for (int i = 0; i < t; i++) {
		if (pos[i] == 0) {
			int curi = i;
			int nmask = 0;
			for (int j = 0; j < l - 8; j++) {
				int g = curi % 3;
				if (g) {
					nmask += 1 << j;
				}
				curi /= 3;
			}
			kt[i] = nmask;
		}
	}

	for (int mask = 0; mask < 256; mask++) {
		for (int i = 0; i < t; i++) {
			if (pos[i] == 0) {
				dp[i] = c[(kt[i] << 8) + mask];
			} else {
				int ft = g[pos[i] - 1];
				dp[i] = dp[i - ft] + dp[i - (ft << 1)];
			}
		}
		for (int j = 0; j < g[8]; j++) {
			bad[j] = false;
			int cur = j;
			for (int f = 0; f < 8; f++) {
				int a = cur % 3;
				if (a != 2) {
					bool fs = ((mask & (1 << f)) != 0);
					if (fs != a) {
						bad[j] = true;
						break;
					}
				}
				cur /= 3;
			}
		}
		for (int it = 0; it < q; it++) {
            if (!bad[prefs[it]]) {
                ans[it] += dp[who[it]];
            }
		}
	}
	for (int it = 0; it < q; it++) {
		cout << ans[it] << '\n';
	}
	return 0; 		
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 512 KB Output is correct
2 Correct 23 ms 512 KB Output is correct
3 Correct 23 ms 512 KB Output is correct
4 Correct 23 ms 512 KB Output is correct
5 Correct 23 ms 384 KB Output is correct
6 Correct 23 ms 512 KB Output is correct
7 Correct 23 ms 384 KB Output is correct
8 Correct 23 ms 512 KB Output is correct
9 Correct 23 ms 384 KB Output is correct
10 Correct 25 ms 384 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 512 KB Output is correct
2 Correct 23 ms 512 KB Output is correct
3 Correct 23 ms 512 KB Output is correct
4 Correct 23 ms 512 KB Output is correct
5 Correct 23 ms 384 KB Output is correct
6 Correct 23 ms 512 KB Output is correct
7 Correct 23 ms 384 KB Output is correct
8 Correct 23 ms 512 KB Output is correct
9 Correct 23 ms 384 KB Output is correct
10 Correct 25 ms 384 KB Output is correct
11 Correct 970 ms 16164 KB Output is correct
12 Correct 1106 ms 16120 KB Output is correct
13 Correct 946 ms 15352 KB Output is correct
14 Correct 941 ms 15480 KB Output is correct
15 Correct 1299 ms 16412 KB Output is correct
16 Correct 951 ms 15608 KB Output is correct
17 Correct 1038 ms 15592 KB Output is correct
18 Correct 754 ms 17272 KB Output is correct
19 Correct 719 ms 14616 KB Output is correct
20 Correct 1142 ms 15992 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 512 KB Output is correct
2 Correct 23 ms 512 KB Output is correct
3 Correct 23 ms 512 KB Output is correct
4 Correct 23 ms 512 KB Output is correct
5 Correct 23 ms 384 KB Output is correct
6 Correct 23 ms 512 KB Output is correct
7 Correct 23 ms 384 KB Output is correct
8 Correct 23 ms 512 KB Output is correct
9 Correct 23 ms 384 KB Output is correct
10 Correct 25 ms 384 KB Output is correct
11 Correct 970 ms 16164 KB Output is correct
12 Correct 1106 ms 16120 KB Output is correct
13 Correct 946 ms 15352 KB Output is correct
14 Correct 941 ms 15480 KB Output is correct
15 Correct 1299 ms 16412 KB Output is correct
16 Correct 951 ms 15608 KB Output is correct
17 Correct 1038 ms 15592 KB Output is correct
18 Correct 754 ms 17272 KB Output is correct
19 Correct 719 ms 14616 KB Output is correct
20 Correct 1142 ms 15992 KB Output is correct
21 Correct 1031 ms 16428 KB Output is correct
22 Correct 1080 ms 16604 KB Output is correct
23 Correct 977 ms 15524 KB Output is correct
24 Correct 1036 ms 15360 KB Output is correct
25 Correct 1344 ms 17400 KB Output is correct
26 Correct 967 ms 15968 KB Output is correct
27 Correct 888 ms 15928 KB Output is correct
28 Correct 698 ms 18388 KB Output is correct
29 Correct 720 ms 14456 KB Output is correct
30 Correct 1081 ms 16632 KB Output is correct
31 Correct 1042 ms 16504 KB Output is correct
32 Correct 881 ms 16504 KB Output is correct
33 Correct 785 ms 15352 KB Output is correct
34 Correct 869 ms 15476 KB Output is correct
35 Correct 1062 ms 16020 KB Output is correct
36 Correct 614 ms 14456 KB Output is correct
37 Correct 1107 ms 16516 KB Output is correct
38 Correct 863 ms 14500 KB Output is correct
39 Correct 828 ms 15608 KB Output is correct
40 Correct 878 ms 15472 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 512 KB Output is correct
2 Correct 23 ms 512 KB Output is correct
3 Correct 23 ms 512 KB Output is correct
4 Correct 23 ms 512 KB Output is correct
5 Correct 23 ms 384 KB Output is correct
6 Correct 23 ms 512 KB Output is correct
7 Correct 23 ms 384 KB Output is correct
8 Correct 23 ms 512 KB Output is correct
9 Correct 23 ms 384 KB Output is correct
10 Correct 25 ms 384 KB Output is correct
11 Correct 374 ms 7932 KB Output is correct
12 Correct 363 ms 7960 KB Output is correct
13 Correct 344 ms 7964 KB Output is correct
14 Correct 346 ms 7960 KB Output is correct
15 Correct 438 ms 7964 KB Output is correct
16 Correct 398 ms 7960 KB Output is correct
17 Correct 390 ms 7960 KB Output is correct
18 Correct 370 ms 8092 KB Output is correct
19 Correct 378 ms 7832 KB Output is correct
20 Correct 397 ms 7960 KB Output is correct
21 Correct 369 ms 8060 KB Output is correct
22 Correct 379 ms 7960 KB Output is correct
23 Correct 377 ms 8084 KB Output is correct
24 Correct 372 ms 7964 KB Output is correct
25 Correct 417 ms 7928 KB Output is correct
26 Correct 372 ms 7832 KB Output is correct
27 Correct 379 ms 7932 KB Output is correct
28 Correct 363 ms 7856 KB Output is correct
29 Correct 402 ms 7852 KB Output is correct
30 Correct 343 ms 8096 KB Output is correct
31 Correct 377 ms 7960 KB Output is correct
32 Correct 387 ms 7960 KB Output is correct
33 Correct 423 ms 7960 KB Output is correct
34 Correct 345 ms 7836 KB Output is correct
35 Correct 369 ms 7960 KB Output is correct
36 Correct 352 ms 7860 KB Output is correct
37 Correct 368 ms 7896 KB Output is correct
38 Correct 363 ms 7960 KB Output is correct
39 Correct 369 ms 7868 KB Output is correct
40 Correct 354 ms 7960 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 512 KB Output is correct
2 Correct 23 ms 512 KB Output is correct
3 Correct 23 ms 512 KB Output is correct
4 Correct 23 ms 512 KB Output is correct
5 Correct 23 ms 384 KB Output is correct
6 Correct 23 ms 512 KB Output is correct
7 Correct 23 ms 384 KB Output is correct
8 Correct 23 ms 512 KB Output is correct
9 Correct 23 ms 384 KB Output is correct
10 Correct 25 ms 384 KB Output is correct
11 Correct 970 ms 16164 KB Output is correct
12 Correct 1106 ms 16120 KB Output is correct
13 Correct 946 ms 15352 KB Output is correct
14 Correct 941 ms 15480 KB Output is correct
15 Correct 1299 ms 16412 KB Output is correct
16 Correct 951 ms 15608 KB Output is correct
17 Correct 1038 ms 15592 KB Output is correct
18 Correct 754 ms 17272 KB Output is correct
19 Correct 719 ms 14616 KB Output is correct
20 Correct 1142 ms 15992 KB Output is correct
21 Correct 1031 ms 16428 KB Output is correct
22 Correct 1080 ms 16604 KB Output is correct
23 Correct 977 ms 15524 KB Output is correct
24 Correct 1036 ms 15360 KB Output is correct
25 Correct 1344 ms 17400 KB Output is correct
26 Correct 967 ms 15968 KB Output is correct
27 Correct 888 ms 15928 KB Output is correct
28 Correct 698 ms 18388 KB Output is correct
29 Correct 720 ms 14456 KB Output is correct
30 Correct 1081 ms 16632 KB Output is correct
31 Correct 1042 ms 16504 KB Output is correct
32 Correct 881 ms 16504 KB Output is correct
33 Correct 785 ms 15352 KB Output is correct
34 Correct 869 ms 15476 KB Output is correct
35 Correct 1062 ms 16020 KB Output is correct
36 Correct 614 ms 14456 KB Output is correct
37 Correct 1107 ms 16516 KB Output is correct
38 Correct 863 ms 14500 KB Output is correct
39 Correct 828 ms 15608 KB Output is correct
40 Correct 878 ms 15472 KB Output is correct
41 Correct 374 ms 7932 KB Output is correct
42 Correct 363 ms 7960 KB Output is correct
43 Correct 344 ms 7964 KB Output is correct
44 Correct 346 ms 7960 KB Output is correct
45 Correct 438 ms 7964 KB Output is correct
46 Correct 398 ms 7960 KB Output is correct
47 Correct 390 ms 7960 KB Output is correct
48 Correct 370 ms 8092 KB Output is correct
49 Correct 378 ms 7832 KB Output is correct
50 Correct 397 ms 7960 KB Output is correct
51 Correct 369 ms 8060 KB Output is correct
52 Correct 379 ms 7960 KB Output is correct
53 Correct 377 ms 8084 KB Output is correct
54 Correct 372 ms 7964 KB Output is correct
55 Correct 417 ms 7928 KB Output is correct
56 Correct 372 ms 7832 KB Output is correct
57 Correct 379 ms 7932 KB Output is correct
58 Correct 363 ms 7856 KB Output is correct
59 Correct 402 ms 7852 KB Output is correct
60 Correct 343 ms 8096 KB Output is correct
61 Correct 377 ms 7960 KB Output is correct
62 Correct 387 ms 7960 KB Output is correct
63 Correct 423 ms 7960 KB Output is correct
64 Correct 345 ms 7836 KB Output is correct
65 Correct 369 ms 7960 KB Output is correct
66 Correct 352 ms 7860 KB Output is correct
67 Correct 368 ms 7896 KB Output is correct
68 Correct 363 ms 7960 KB Output is correct
69 Correct 369 ms 7868 KB Output is correct
70 Correct 354 ms 7960 KB Output is correct
71 Correct 1591 ms 23680 KB Output is correct
72 Correct 1804 ms 23832 KB Output is correct
73 Correct 1677 ms 22308 KB Output is correct
74 Correct 1843 ms 22736 KB Output is correct
75 Execution timed out 2047 ms 18868 KB Time limit exceeded
76 Halted 0 ms 0 KB -