oj.uz

Submission #334762

# Submission time Handle Problem Language Result Execution time Memory
334762 2020-12-10T00:56:17 Z HoneyBadger Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 2000 ms 25324 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>
 
 
 
#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 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 int MX = 1 << 20;
const int PW = 20;
const double EPS = 1e-9;
 
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

inline int readChar();
inline int readInt();
inline void writeInt(int x, char end = 0);
inline void writeChar(int x);


static const int buf_size = 4096;

inline int getChar() {
    static char buf[buf_size];
    static int len = 0, pos = 0;
    if (pos == len)
        pos = 0, len = fread(buf, 1, buf_size, stdin);
    if (pos == len)
        return -1;
    return buf[pos++];
}

inline int readChar() {
    int c = getChar();
    while (c <= 32)
        c = getChar();
    return c;
}

inline int readInt() {
    int c = readChar();
    int x = 0;
    while ('0' <= c && c <= '9')
        x = x * 10 + c - '0', c = getChar();
    return x;
}


static int write_pos = 0;
static char write_buf[buf_size];

inline void writeChar(int x) {
    if (write_pos == buf_size)
        fwrite(write_buf, 1, buf_size, stdout), write_pos = 0;
    write_buf[write_pos++] = x;
}

inline void writeInt(int x, char end) {
    char s[9];
    int n = 0;
    while (x || !n)
        s[n++] = '0' + x % 10, x /= 10;
    while (n--)
        writeChar(s[n]);
    if (end)
        writeChar(end);
}


struct Flusher {
    ~Flusher() {
        if (write_pos)
            fwrite(write_buf, 1, write_pos, stdout), write_pos = 0;
    }
} flusher;


 
int n, q;
int a[MX];
int sos1[MX];
int sos0[MX];
int bits[MX];
 
void calc() {
    for (int mask = 0; mask < (1 << n); ++mask) {
        sos1[mask] = a[mask];
        sos0[mask] = a[mask];
        bits[mask] = bits[mask >> 1] + (mask & 1);
    }
    for (int i = 0; i < n; ++i) {
        for (int mask = 0; mask < (1 << n); ++mask) {
            if ((mask >> i) & 1) {
                sos1[mask] += sos1[mask ^ (1 << i)];
            } else {
                sos0[mask] += sos0[mask ^ (1 << i)];
            }
        }
    }
 
}
 
int ans;
str s;
 
 
void solveq(int i = 0, int mask = 0) {
    if (i == n) {
        ans += a[mask];
        return;
    }
    mask <<= 1;
    if (s[i] == '?') {
        solveq(i + 1, mask);
        solveq(i + 1, mask ^ 1);
    } else {
        solveq(i + 1, mask ^ (s[i] == '1'));
    }
}
 
void solve1(int i = 0, int mask = 0, int del = 0) {
    if (i == n) {
        if (del)
            ans -= sos1[mask];
        else
            ans += sos1[mask];
        return;
    }
    mask <<= 1;
    if (s[i] == '1') {
        solve1(i + 1, mask ^ 1, del);
        solve1(i + 1, mask, del ^ 1);  
    } else {
        solve1(i + 1, mask ^ (s[i] == '?'), del);
    }
}
 
void solve0(int i = 0, int mask = 0, int del = 0) {
    if (i == n) {
        if (del)
            ans -= sos0[mask];
        else
            ans += sos0[mask];
        return;
    }
    mask <<= 1;
    if (s[i] == '0') {
        solve0(i + 1, mask ^ 1, del ^ 1);
        solve0(i + 1, mask, del);
    } else {
        solve0(i + 1, mask ^ (s[i] != '?'), del);
    }
}
 
int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
 
    n = readInt(), q = readInt();
    for (int i = 0; i < (1 << n); ++i) {
        a[i] = readChar() - '0';
    }
 
    calc();
    s = string(n, '0');
    while (q--) {
        int pq = 0, p1 = 0, p0 = 0;
        fx(c, s) {
            c = readChar();
            pq += c == '?';
            p1 += c == '1';
            p0 += c == '0';
        }
        ans = 0;
        if (pq <= p1 && pq <= p0) {
            solveq();
        } else if (p1 <= pq && p1 <= p0) {
            solve1();
        } else {    
            solve0();
        }
        writeInt(ans, '\n');
    }
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 75 ms 4460 KB Output is correct
12 Correct 79 ms 4076 KB Output is correct
13 Correct 110 ms 3308 KB Output is correct
14 Correct 148 ms 3436 KB Output is correct
15 Correct 106 ms 4460 KB Output is correct
16 Correct 163 ms 3564 KB Output is correct
17 Correct 149 ms 3564 KB Output is correct
18 Correct 80 ms 5484 KB Output is correct
19 Correct 62 ms 2412 KB Output is correct
20 Correct 84 ms 4076 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 75 ms 4460 KB Output is correct
12 Correct 79 ms 4076 KB Output is correct
13 Correct 110 ms 3308 KB Output is correct
14 Correct 148 ms 3436 KB Output is correct
15 Correct 106 ms 4460 KB Output is correct
16 Correct 163 ms 3564 KB Output is correct
17 Correct 149 ms 3564 KB Output is correct
18 Correct 80 ms 5484 KB Output is correct
19 Correct 62 ms 2412 KB Output is correct
20 Correct 84 ms 4076 KB Output is correct
21 Correct 96 ms 4660 KB Output is correct
22 Correct 103 ms 4716 KB Output is correct
23 Correct 203 ms 3820 KB Output is correct
24 Correct 359 ms 3564 KB Output is correct
25 Correct 168 ms 5484 KB Output is correct
26 Correct 341 ms 4204 KB Output is correct
27 Correct 286 ms 4076 KB Output is correct
28 Correct 105 ms 6508 KB Output is correct
29 Correct 81 ms 2540 KB Output is correct
30 Correct 103 ms 4716 KB Output is correct
31 Correct 217 ms 4572 KB Output is correct
32 Correct 374 ms 4588 KB Output is correct
33 Correct 148 ms 3436 KB Output is correct
34 Correct 325 ms 3564 KB Output is correct
35 Correct 285 ms 4076 KB Output is correct
36 Correct 78 ms 2540 KB Output is correct
37 Correct 94 ms 4588 KB Output is correct
38 Correct 80 ms 2540 KB Output is correct
39 Correct 211 ms 3712 KB Output is correct
40 Correct 366 ms 3564 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 46 ms 17004 KB Output is correct
12 Correct 48 ms 17004 KB Output is correct
13 Correct 81 ms 17004 KB Output is correct
14 Correct 138 ms 17004 KB Output is correct
15 Correct 57 ms 17132 KB Output is correct
16 Correct 156 ms 17004 KB Output is correct
17 Correct 126 ms 17004 KB Output is correct
18 Correct 46 ms 17132 KB Output is correct
19 Correct 47 ms 16876 KB Output is correct
20 Correct 47 ms 17004 KB Output is correct
21 Correct 82 ms 17004 KB Output is correct
22 Correct 132 ms 17004 KB Output is correct
23 Correct 56 ms 16876 KB Output is correct
24 Correct 143 ms 17004 KB Output is correct
25 Correct 128 ms 17004 KB Output is correct
26 Correct 43 ms 16876 KB Output is correct
27 Correct 47 ms 17004 KB Output is correct
28 Correct 47 ms 16876 KB Output is correct
29 Correct 84 ms 17004 KB Output is correct
30 Correct 135 ms 16992 KB Output is correct
31 Correct 55 ms 16876 KB Output is correct
32 Correct 159 ms 17004 KB Output is correct
33 Correct 126 ms 17004 KB Output is correct
34 Correct 45 ms 16876 KB Output is correct
35 Correct 99 ms 17004 KB Output is correct
36 Correct 98 ms 17004 KB Output is correct
37 Correct 101 ms 17004 KB Output is correct
38 Correct 101 ms 17004 KB Output is correct
39 Correct 98 ms 17004 KB Output is correct
40 Correct 99 ms 16980 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 75 ms 4460 KB Output is correct
12 Correct 79 ms 4076 KB Output is correct
13 Correct 110 ms 3308 KB Output is correct
14 Correct 148 ms 3436 KB Output is correct
15 Correct 106 ms 4460 KB Output is correct
16 Correct 163 ms 3564 KB Output is correct
17 Correct 149 ms 3564 KB Output is correct
18 Correct 80 ms 5484 KB Output is correct
19 Correct 62 ms 2412 KB Output is correct
20 Correct 84 ms 4076 KB Output is correct
21 Correct 96 ms 4660 KB Output is correct
22 Correct 103 ms 4716 KB Output is correct
23 Correct 203 ms 3820 KB Output is correct
24 Correct 359 ms 3564 KB Output is correct
25 Correct 168 ms 5484 KB Output is correct
26 Correct 341 ms 4204 KB Output is correct
27 Correct 286 ms 4076 KB Output is correct
28 Correct 105 ms 6508 KB Output is correct
29 Correct 81 ms 2540 KB Output is correct
30 Correct 103 ms 4716 KB Output is correct
31 Correct 217 ms 4572 KB Output is correct
32 Correct 374 ms 4588 KB Output is correct
33 Correct 148 ms 3436 KB Output is correct
34 Correct 325 ms 3564 KB Output is correct
35 Correct 285 ms 4076 KB Output is correct
36 Correct 78 ms 2540 KB Output is correct
37 Correct 94 ms 4588 KB Output is correct
38 Correct 80 ms 2540 KB Output is correct
39 Correct 211 ms 3712 KB Output is correct
40 Correct 366 ms 3564 KB Output is correct
41 Correct 46 ms 17004 KB Output is correct
42 Correct 48 ms 17004 KB Output is correct
43 Correct 81 ms 17004 KB Output is correct
44 Correct 138 ms 17004 KB Output is correct
45 Correct 57 ms 17132 KB Output is correct
46 Correct 156 ms 17004 KB Output is correct
47 Correct 126 ms 17004 KB Output is correct
48 Correct 46 ms 17132 KB Output is correct
49 Correct 47 ms 16876 KB Output is correct
50 Correct 47 ms 17004 KB Output is correct
51 Correct 82 ms 17004 KB Output is correct
52 Correct 132 ms 17004 KB Output is correct
53 Correct 56 ms 16876 KB Output is correct
54 Correct 143 ms 17004 KB Output is correct
55 Correct 128 ms 17004 KB Output is correct
56 Correct 43 ms 16876 KB Output is correct
57 Correct 47 ms 17004 KB Output is correct
58 Correct 47 ms 16876 KB Output is correct
59 Correct 84 ms 17004 KB Output is correct
60 Correct 135 ms 16992 KB Output is correct
61 Correct 55 ms 16876 KB Output is correct
62 Correct 159 ms 17004 KB Output is correct
63 Correct 126 ms 17004 KB Output is correct
64 Correct 45 ms 16876 KB Output is correct
65 Correct 99 ms 17004 KB Output is correct
66 Correct 98 ms 17004 KB Output is correct
67 Correct 101 ms 17004 KB Output is correct
68 Correct 101 ms 17004 KB Output is correct
69 Correct 98 ms 17004 KB Output is correct
70 Correct 99 ms 16980 KB Output is correct
71 Correct 220 ms 21952 KB Output is correct
72 Correct 227 ms 21868 KB Output is correct
73 Correct 950 ms 20460 KB Output is correct
74 Correct 1927 ms 20844 KB Output is correct
75 Correct 421 ms 25324 KB Output is correct
76 Execution timed out 2065 ms 23064 KB Time limit exceeded
77 Halted 0 ms 0 KB -