oj.uz

Submission #522223

# Submission time Handle Problem Language Result Execution time Memory
522223 2022-02-04T08:13:54 Z Monarchuwu Snake Escaping (JOI18_snake_escaping) C++17
12 / 100
 228 ms 16488 KB 
#include<iostream>
#include<algorithm>
#include<string>
#define all(x) x.begin(), x.end()
using namespace std;
typedef long long ll;

const int N = 2e6 + 10;
int l, q;
string s;

int pw3[13], a[N];
void prep() {
    pw3[0] = 1;
    for (int i = 1; i < 13; ++i)
        pw3[i] = pw3[i - 1] * 3;

    for (int i = 0, msk, x; i < s.size(); ++i) {
        msk = 0, x = i;
        for (int j = 0; j < l; ++j)
            if (x >> j & 1) msk += pw3[j];
        a[msk] = s[i] ^ 48;
    }

    for (int j = 0; j < l; ++j)
        for (int msk = 0; msk < pw3[l]; ++msk)
            if (msk / pw3[j] % 3 == 2)
                a[msk] += a[msk - pw3[j]] + a[msk - pw3[j] * 2];
}

int main() {
    cin.tie(NULL)->sync_with_stdio(false);
    cin >> l >> q >> s;
    prep();

    while (q--) {
        string t; cin >> t;
        int msk(0);
        for (char c : t) {
            msk *= 3;
            if (c == '1') ++msk;
            else if (c == '?') msk += 2;
        }
        cout << a[msk] << '\n';
    }
}
/**  /\_/\
 *  (= ._.)
 *  / >0  \>1
**/

Compilation message

snake_escaping.cpp: In function 'void prep()':
snake_escaping.cpp:18:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for (int i = 0, msk, x; i < s.size(); ++i) {
      |                             ~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 460 KB Output is correct
2 Correct 4 ms 432 KB Output is correct
3 Correct 4 ms 460 KB Output is correct
4 Correct 4 ms 460 KB Output is correct
5 Correct 4 ms 460 KB Output is correct
6 Correct 4 ms 452 KB Output is correct
7 Correct 4 ms 456 KB Output is correct
8 Correct 5 ms 460 KB Output is correct
9 Correct 5 ms 684 KB Output is correct
10 Correct 4 ms 460 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 460 KB Output is correct
2 Correct 4 ms 432 KB Output is correct
3 Correct 4 ms 460 KB Output is correct
4 Correct 4 ms 460 KB Output is correct
5 Correct 4 ms 460 KB Output is correct
6 Correct 4 ms 452 KB Output is correct
7 Correct 4 ms 456 KB Output is correct
8 Correct 5 ms 460 KB Output is correct
9 Correct 5 ms 684 KB Output is correct
10 Correct 4 ms 460 KB Output is correct
11 Correct 193 ms 15256 KB Output is correct
12 Correct 158 ms 14848 KB Output is correct
13 Correct 179 ms 14160 KB Output is correct
14 Correct 212 ms 14296 KB Output is correct
15 Correct 172 ms 15296 KB Output is correct
16 Correct 190 ms 14444 KB Output is correct
17 Correct 189 ms 14360 KB Output is correct
18 Correct 159 ms 16196 KB Output is correct
19 Correct 193 ms 13244 KB Output is correct
20 Correct 219 ms 14852 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 460 KB Output is correct
2 Correct 4 ms 432 KB Output is correct
3 Correct 4 ms 460 KB Output is correct
4 Correct 4 ms 460 KB Output is correct
5 Correct 4 ms 460 KB Output is correct
6 Correct 4 ms 452 KB Output is correct
7 Correct 4 ms 456 KB Output is correct
8 Correct 5 ms 460 KB Output is correct
9 Correct 5 ms 684 KB Output is correct
10 Correct 4 ms 460 KB Output is correct
11 Correct 193 ms 15256 KB Output is correct
12 Correct 158 ms 14848 KB Output is correct
13 Correct 179 ms 14160 KB Output is correct
14 Correct 212 ms 14296 KB Output is correct
15 Correct 172 ms 15296 KB Output is correct
16 Correct 190 ms 14444 KB Output is correct
17 Correct 189 ms 14360 KB Output is correct
18 Correct 159 ms 16196 KB Output is correct
19 Correct 193 ms 13244 KB Output is correct
20 Correct 219 ms 14852 KB Output is correct
21 Incorrect 228 ms 16488 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 460 KB Output is correct
2 Correct 4 ms 432 KB Output is correct
3 Correct 4 ms 460 KB Output is correct
4 Correct 4 ms 460 KB Output is correct
5 Correct 4 ms 460 KB Output is correct
6 Correct 4 ms 452 KB Output is correct
7 Correct 4 ms 456 KB Output is correct
8 Correct 5 ms 460 KB Output is correct
9 Correct 5 ms 684 KB Output is correct
10 Correct 4 ms 460 KB Output is correct
11 Runtime error 9 ms 5100 KB Execution killed with signal 11
12 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 460 KB Output is correct
2 Correct 4 ms 432 KB Output is correct
3 Correct 4 ms 460 KB Output is correct
4 Correct 4 ms 460 KB Output is correct
5 Correct 4 ms 460 KB Output is correct
6 Correct 4 ms 452 KB Output is correct
7 Correct 4 ms 456 KB Output is correct
8 Correct 5 ms 460 KB Output is correct
9 Correct 5 ms 684 KB Output is correct
10 Correct 4 ms 460 KB Output is correct
11 Correct 193 ms 15256 KB Output is correct
12 Correct 158 ms 14848 KB Output is correct
13 Correct 179 ms 14160 KB Output is correct
14 Correct 212 ms 14296 KB Output is correct
15 Correct 172 ms 15296 KB Output is correct
16 Correct 190 ms 14444 KB Output is correct
17 Correct 189 ms 14360 KB Output is correct
18 Correct 159 ms 16196 KB Output is correct
19 Correct 193 ms 13244 KB Output is correct
20 Correct 219 ms 14852 KB Output is correct
21 Incorrect 228 ms 16488 KB Output isn't correct
22 Halted 0 ms 0 KB -