oj.uz

Submission #535667

# Submission time Handle Problem Language Result Execution time Memory
535667 2022-03-10T21:34:26 Z iliaM Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 2000 ms 21972 KB 
#include <bits/stdc++.h>
using namespace std;
#define cerr cerr << "DEBUG "

constexpr int N = (1 << 20) + 10;

int a[N], f[N], g[N], h[N];
int n, m;

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
	
	cin >> n >> m;
	for (int i = 0; i < (1 << n); ++i) {
		char c;
		cin >> c;
		a[i] = c - '0';
	}
	
	int comp = (1 << n) - 1;
	for (int i = 0; i < (1 << n); ++i) {
		f[i] = g[i ^ comp] = a[i];
	}
	for (int i = 0; i < n; ++i) {
		for (int mask = 0; mask < (1 << n); ++mask) {
			if ((mask >> i) & 1) {
				f[mask] += f[mask ^ (1 << i)];
				g[mask] += g[mask ^ (1 << i)];
			}
		}
	}
	for (int i = 0; i < (1 << n); ++i) {
		h[i] = g[i ^ comp];
	}
	
	while (m--) {
		string s;
		cin >> s;
		int cnt0 = 0, cnt1 = 0, num = 0, numm = 0;
		reverse(s.begin(), s.end());
		for (int i = 0; i < n; ++i) {
			cnt0 += s[i] == '0';
			cnt1 += s[i] == '1';
			if (s[i] == '1') {
				num += (1 << i);
				numm += (1 << i);
			}
			if (s[i] == '?') {
				numm += (1 << i);
			}
		}

		int sum = 0;
		if (cnt1 <= 6) {
			for (int mask = 0; mask < (1 << cnt1); ++mask) {
				int num2 = numm;
				for (int c = 0, i = 0; i < n; ++i) {
					if (s[i] == '1') {
						num2 ^= ((mask >> c) & 1) << i;
						++c;
					}
				}
				sum += (__builtin_parity(mask) ? -1 : +1) * f[num2];
			}
		} else if (n - cnt0 - cnt1 <= 6) {
			int cnt = n - cnt0 - cnt1;
			for (int mask = 0; mask < (1 << cnt); ++mask) {
				int num2 = num;
				for (int c = 0, i = 0; i < n; ++i) {
					if (s[i] == '?') {
						num2 ^= ((mask >> c) & 1) << i;
						++c;
					}
				}
				sum += a[num2];
			}
		} else {
			for (int mask = 0; mask < (1 << cnt0); ++mask) {
				int num2 = num;
				for (int c = 0, i = 0; i < n; ++i) {
					if (s[i] == '0') {
						num2 ^= ((mask >> c) & 1) << i;
						++c;
					}
				}
				sum += (__builtin_parity(mask) ? -1 : +1) * h[num2];
			}
		}
		cout << sum << '\n';
	}
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 637 ms 4320 KB Output is correct
12 Correct 175 ms 3928 KB Output is correct
13 Correct 334 ms 3336 KB Output is correct
14 Correct 312 ms 3352 KB Output is correct
15 Correct 273 ms 4364 KB Output is correct
16 Correct 474 ms 3528 KB Output is correct
17 Correct 459 ms 3516 KB Output is correct
18 Correct 205 ms 5292 KB Output is correct
19 Correct 650 ms 2300 KB Output is correct
20 Correct 619 ms 4032 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 637 ms 4320 KB Output is correct
12 Correct 175 ms 3928 KB Output is correct
13 Correct 334 ms 3336 KB Output is correct
14 Correct 312 ms 3352 KB Output is correct
15 Correct 273 ms 4364 KB Output is correct
16 Correct 474 ms 3528 KB Output is correct
17 Correct 459 ms 3516 KB Output is correct
18 Correct 205 ms 5292 KB Output is correct
19 Correct 650 ms 2300 KB Output is correct
20 Correct 619 ms 4032 KB Output is correct
21 Correct 1306 ms 4484 KB Output is correct
22 Correct 192 ms 4676 KB Output is correct
23 Correct 563 ms 3560 KB Output is correct
24 Correct 541 ms 3472 KB Output is correct
25 Correct 379 ms 5452 KB Output is correct
26 Correct 710 ms 3960 KB Output is correct
27 Correct 677 ms 4064 KB Output is correct
28 Correct 195 ms 6476 KB Output is correct
29 Correct 222 ms 2428 KB Output is correct
30 Correct 969 ms 4720 KB Output is correct
31 Correct 566 ms 4400 KB Output is correct
32 Correct 558 ms 4444 KB Output is correct
33 Correct 395 ms 3404 KB Output is correct
34 Correct 759 ms 3508 KB Output is correct
35 Correct 682 ms 3896 KB Output is correct
36 Correct 175 ms 2380 KB Output is correct
37 Correct 187 ms 4428 KB Output is correct
38 Correct 604 ms 2432 KB Output is correct
39 Correct 1303 ms 3816 KB Output is correct
40 Correct 806 ms 3464 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 59 ms 16960 KB Output is correct
12 Correct 60 ms 16984 KB Output is correct
13 Correct 101 ms 16844 KB Output is correct
14 Correct 153 ms 16848 KB Output is correct
15 Correct 82 ms 16968 KB Output is correct
16 Correct 156 ms 16844 KB Output is correct
17 Correct 137 ms 16844 KB Output is correct
18 Correct 57 ms 17152 KB Output is correct
19 Correct 59 ms 16732 KB Output is correct
20 Correct 70 ms 16884 KB Output is correct
21 Correct 101 ms 16948 KB Output is correct
22 Correct 193 ms 16852 KB Output is correct
23 Correct 82 ms 16796 KB Output is correct
24 Correct 147 ms 16840 KB Output is correct
25 Correct 136 ms 16892 KB Output is correct
26 Correct 54 ms 16720 KB Output is correct
27 Correct 56 ms 16968 KB Output is correct
28 Correct 63 ms 16720 KB Output is correct
29 Correct 101 ms 16856 KB Output is correct
30 Correct 131 ms 16856 KB Output is correct
31 Correct 83 ms 16844 KB Output is correct
32 Correct 143 ms 16848 KB Output is correct
33 Correct 144 ms 16944 KB Output is correct
34 Correct 58 ms 16768 KB Output is correct
35 Correct 111 ms 16864 KB Output is correct
36 Correct 116 ms 16888 KB Output is correct
37 Correct 112 ms 16840 KB Output is correct
38 Correct 112 ms 16848 KB Output is correct
39 Correct 111 ms 16900 KB Output is correct
40 Correct 116 ms 16912 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 637 ms 4320 KB Output is correct
12 Correct 175 ms 3928 KB Output is correct
13 Correct 334 ms 3336 KB Output is correct
14 Correct 312 ms 3352 KB Output is correct
15 Correct 273 ms 4364 KB Output is correct
16 Correct 474 ms 3528 KB Output is correct
17 Correct 459 ms 3516 KB Output is correct
18 Correct 205 ms 5292 KB Output is correct
19 Correct 650 ms 2300 KB Output is correct
20 Correct 619 ms 4032 KB Output is correct
21 Correct 1306 ms 4484 KB Output is correct
22 Correct 192 ms 4676 KB Output is correct
23 Correct 563 ms 3560 KB Output is correct
24 Correct 541 ms 3472 KB Output is correct
25 Correct 379 ms 5452 KB Output is correct
26 Correct 710 ms 3960 KB Output is correct
27 Correct 677 ms 4064 KB Output is correct
28 Correct 195 ms 6476 KB Output is correct
29 Correct 222 ms 2428 KB Output is correct
30 Correct 969 ms 4720 KB Output is correct
31 Correct 566 ms 4400 KB Output is correct
32 Correct 558 ms 4444 KB Output is correct
33 Correct 395 ms 3404 KB Output is correct
34 Correct 759 ms 3508 KB Output is correct
35 Correct 682 ms 3896 KB Output is correct
36 Correct 175 ms 2380 KB Output is correct
37 Correct 187 ms 4428 KB Output is correct
38 Correct 604 ms 2432 KB Output is correct
39 Correct 1303 ms 3816 KB Output is correct
40 Correct 806 ms 3464 KB Output is correct
41 Correct 59 ms 16960 KB Output is correct
42 Correct 60 ms 16984 KB Output is correct
43 Correct 101 ms 16844 KB Output is correct
44 Correct 153 ms 16848 KB Output is correct
45 Correct 82 ms 16968 KB Output is correct
46 Correct 156 ms 16844 KB Output is correct
47 Correct 137 ms 16844 KB Output is correct
48 Correct 57 ms 17152 KB Output is correct
49 Correct 59 ms 16732 KB Output is correct
50 Correct 70 ms 16884 KB Output is correct
51 Correct 101 ms 16948 KB Output is correct
52 Correct 193 ms 16852 KB Output is correct
53 Correct 82 ms 16796 KB Output is correct
54 Correct 147 ms 16840 KB Output is correct
55 Correct 136 ms 16892 KB Output is correct
56 Correct 54 ms 16720 KB Output is correct
57 Correct 56 ms 16968 KB Output is correct
58 Correct 63 ms 16720 KB Output is correct
59 Correct 101 ms 16856 KB Output is correct
60 Correct 131 ms 16856 KB Output is correct
61 Correct 83 ms 16844 KB Output is correct
62 Correct 143 ms 16848 KB Output is correct
63 Correct 144 ms 16944 KB Output is correct
64 Correct 58 ms 16768 KB Output is correct
65 Correct 111 ms 16864 KB Output is correct
66 Correct 116 ms 16888 KB Output is correct
67 Correct 112 ms 16840 KB Output is correct
68 Correct 112 ms 16848 KB Output is correct
69 Correct 111 ms 16900 KB Output is correct
70 Correct 116 ms 16912 KB Output is correct
71 Correct 374 ms 21684 KB Output is correct
72 Correct 322 ms 21972 KB Output is correct
73 Correct 1232 ms 20296 KB Output is correct
74 Execution timed out 2016 ms 20752 KB Time limit exceeded
75 Halted 0 ms 0 KB -