oj.uz

Submission #122525

# Submission time Handle Problem Language Result Execution time Memory
122525 2019-06-28T14:33:22 Z egorlifar Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 2000 ms 33160 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 - 7; i++) {
		t *= 3;
	}
		g[0] = 1;
	for (int i = 1; i <= 20; i++) {
		g[i] = g[i - 1] * 3;
	}
	if (l <= 7) {
		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 = 7; i < l; i++) {
			who[it] += (int)st[i] * cur;
			cur *= 3;
		}
		for (int i = 0; i < 7; i++) {
			prefs[it] += (int)st[i] * g[i];
		}
	}	
	for (int i = 0; i < l - 7; 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 - 7 - 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 - 7; j++) {
				int g = curi % 3;
				if (g) {
					nmask += 1 << j;
				}
				curi /= 3;
			}
			kt[i] = nmask;
		}
	}

	for (int mask = 0; mask < 128; mask++) {
		for (int i = 0; i < t; i++) {
			if (pos[i] == 0) {
				dp[i] = c[(kt[i] << 7) + mask];
			} else {
				int ft = g[pos[i] - 1];
				dp[i] = dp[i - ft] + dp[i - (ft << 1)];
			}
		}
		for (int j = 0; j < g[7]; j++) {
			bad[j] = false;
			int cur = j;
			for (int f = 0; f < 7; 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 6 ms 384 KB Output is correct
2 Correct 11 ms 384 KB Output is correct
3 Correct 6 ms 484 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 6 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 11 ms 384 KB Output is correct
3 Correct 6 ms 484 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 6 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 681 ms 26904 KB Output is correct
12 Correct 744 ms 18040 KB Output is correct
13 Correct 614 ms 17140 KB Output is correct
14 Correct 635 ms 17372 KB Output is correct
15 Correct 840 ms 18424 KB Output is correct
16 Correct 701 ms 17536 KB Output is correct
17 Correct 710 ms 17572 KB Output is correct
18 Correct 529 ms 19376 KB Output is correct
19 Correct 562 ms 16376 KB Output is correct
20 Correct 825 ms 18104 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 11 ms 384 KB Output is correct
3 Correct 6 ms 484 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 6 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 681 ms 26904 KB Output is correct
12 Correct 744 ms 18040 KB Output is correct
13 Correct 614 ms 17140 KB Output is correct
14 Correct 635 ms 17372 KB Output is correct
15 Correct 840 ms 18424 KB Output is correct
16 Correct 701 ms 17536 KB Output is correct
17 Correct 710 ms 17572 KB Output is correct
18 Correct 529 ms 19376 KB Output is correct
19 Correct 562 ms 16376 KB Output is correct
20 Correct 825 ms 18104 KB Output is correct
21 Correct 794 ms 18380 KB Output is correct
22 Correct 786 ms 18432 KB Output is correct
23 Correct 614 ms 17608 KB Output is correct
24 Correct 917 ms 17372 KB Output is correct
25 Correct 872 ms 19408 KB Output is correct
26 Correct 666 ms 17832 KB Output is correct
27 Correct 662 ms 17732 KB Output is correct
28 Correct 562 ms 20216 KB Output is correct
29 Correct 598 ms 16536 KB Output is correct
30 Correct 873 ms 18552 KB Output is correct
31 Correct 801 ms 18408 KB Output is correct
32 Correct 827 ms 18324 KB Output is correct
33 Correct 658 ms 17312 KB Output is correct
34 Correct 635 ms 17268 KB Output is correct
35 Correct 658 ms 17840 KB Output is correct
36 Correct 487 ms 16564 KB Output is correct
37 Correct 689 ms 18296 KB Output is correct
38 Correct 548 ms 16368 KB Output is correct
39 Correct 688 ms 17552 KB Output is correct
40 Correct 703 ms 17400 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 11 ms 384 KB Output is correct
3 Correct 6 ms 484 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 6 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 564 ms 18384 KB Output is correct
12 Correct 555 ms 18460 KB Output is correct
13 Correct 599 ms 18456 KB Output is correct
14 Correct 559 ms 18384 KB Output is correct
15 Correct 630 ms 18584 KB Output is correct
16 Correct 506 ms 18456 KB Output is correct
17 Correct 577 ms 18400 KB Output is correct
18 Correct 471 ms 18580 KB Output is correct
19 Correct 500 ms 18328 KB Output is correct
20 Correct 550 ms 18428 KB Output is correct
21 Correct 574 ms 18456 KB Output is correct
22 Correct 505 ms 18384 KB Output is correct
23 Correct 507 ms 18380 KB Output is correct
24 Correct 513 ms 18408 KB Output is correct
25 Correct 526 ms 18496 KB Output is correct
26 Correct 464 ms 18328 KB Output is correct
27 Correct 512 ms 18428 KB Output is correct
28 Correct 504 ms 18328 KB Output is correct
29 Correct 519 ms 18392 KB Output is correct
30 Correct 520 ms 18392 KB Output is correct
31 Correct 538 ms 18452 KB Output is correct
32 Correct 504 ms 18456 KB Output is correct
33 Correct 517 ms 18568 KB Output is correct
34 Correct 488 ms 18328 KB Output is correct
35 Correct 490 ms 18460 KB Output is correct
36 Correct 491 ms 18384 KB Output is correct
37 Correct 512 ms 18456 KB Output is correct
38 Correct 534 ms 18456 KB Output is correct
39 Correct 548 ms 18428 KB Output is correct
40 Correct 637 ms 18428 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 384 KB Output is correct
2 Correct 11 ms 384 KB Output is correct
3 Correct 6 ms 484 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 6 ms 512 KB Output is correct
7 Correct 6 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 6 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 681 ms 26904 KB Output is correct
12 Correct 744 ms 18040 KB Output is correct
13 Correct 614 ms 17140 KB Output is correct
14 Correct 635 ms 17372 KB Output is correct
15 Correct 840 ms 18424 KB Output is correct
16 Correct 701 ms 17536 KB Output is correct
17 Correct 710 ms 17572 KB Output is correct
18 Correct 529 ms 19376 KB Output is correct
19 Correct 562 ms 16376 KB Output is correct
20 Correct 825 ms 18104 KB Output is correct
21 Correct 794 ms 18380 KB Output is correct
22 Correct 786 ms 18432 KB Output is correct
23 Correct 614 ms 17608 KB Output is correct
24 Correct 917 ms 17372 KB Output is correct
25 Correct 872 ms 19408 KB Output is correct
26 Correct 666 ms 17832 KB Output is correct
27 Correct 662 ms 17732 KB Output is correct
28 Correct 562 ms 20216 KB Output is correct
29 Correct 598 ms 16536 KB Output is correct
30 Correct 873 ms 18552 KB Output is correct
31 Correct 801 ms 18408 KB Output is correct
32 Correct 827 ms 18324 KB Output is correct
33 Correct 658 ms 17312 KB Output is correct
34 Correct 635 ms 17268 KB Output is correct
35 Correct 658 ms 17840 KB Output is correct
36 Correct 487 ms 16564 KB Output is correct
37 Correct 689 ms 18296 KB Output is correct
38 Correct 548 ms 16368 KB Output is correct
39 Correct 688 ms 17552 KB Output is correct
40 Correct 703 ms 17400 KB Output is correct
41 Correct 564 ms 18384 KB Output is correct
42 Correct 555 ms 18460 KB Output is correct
43 Correct 599 ms 18456 KB Output is correct
44 Correct 559 ms 18384 KB Output is correct
45 Correct 630 ms 18584 KB Output is correct
46 Correct 506 ms 18456 KB Output is correct
47 Correct 577 ms 18400 KB Output is correct
48 Correct 471 ms 18580 KB Output is correct
49 Correct 500 ms 18328 KB Output is correct
50 Correct 550 ms 18428 KB Output is correct
51 Correct 574 ms 18456 KB Output is correct
52 Correct 505 ms 18384 KB Output is correct
53 Correct 507 ms 18380 KB Output is correct
54 Correct 513 ms 18408 KB Output is correct
55 Correct 526 ms 18496 KB Output is correct
56 Correct 464 ms 18328 KB Output is correct
57 Correct 512 ms 18428 KB Output is correct
58 Correct 504 ms 18328 KB Output is correct
59 Correct 519 ms 18392 KB Output is correct
60 Correct 520 ms 18392 KB Output is correct
61 Correct 538 ms 18452 KB Output is correct
62 Correct 504 ms 18456 KB Output is correct
63 Correct 517 ms 18568 KB Output is correct
64 Correct 488 ms 18328 KB Output is correct
65 Correct 490 ms 18460 KB Output is correct
66 Correct 491 ms 18384 KB Output is correct
67 Correct 512 ms 18456 KB Output is correct
68 Correct 534 ms 18456 KB Output is correct
69 Correct 548 ms 18428 KB Output is correct
70 Correct 637 ms 18428 KB Output is correct
71 Correct 1532 ms 32308 KB Output is correct
72 Correct 1676 ms 32408 KB Output is correct
73 Correct 1685 ms 31012 KB Output is correct
74 Correct 1884 ms 31228 KB Output is correct
75 Execution timed out 2013 ms 33160 KB Time limit exceeded
76 Halted 0 ms 0 KB -