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Submission #1113400

# Submission time Handle Problem Language Result Execution time Memory
1113400 2024-11-16T14:13:01 Z vjudge1 Snake Escaping (JOI18_snake_escaping) C++17
75 / 100
 2000 ms 23384 KB 
#include <bits/stdc++.h>
#pragma GCC target("popcnt")
#define ll long long
#define pii pair<int, int>
using namespace std;

const int N = 20, SPLIT = 6;

int n, q, mask[1<<N];
string vals;

int dp[2][1<<N];

int main()
{
	ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	cin >> n >> q >> vals;
	for (int i = 0; i < (1<<n); i++)
		mask[i] = vals[i] - '0';
	for (int i = 0; i <= n; i++) {
		for (int msk = 0; msk < (1<<n); msk++) {
			if(!i){
				dp[0][msk] = mask[msk];
				dp[1][msk] = mask[msk];
				continue;
			}
			if (msk & (1 << (i-1)))
				dp[0][msk] += dp[0][msk ^ (1 << (i-1))];
			else
				dp[1][msk] += dp[1][msk ^ (1 << (i-1))];
		}
		
	}
	
	while (q--) {
		string b;
		cin >> b;
		int c_marks=0, cc[2]={};
		for (char c : b)
			if (c == '?')
				c_marks++;
			else
				cc[c-'0']++;
		
		
		if (false && c_marks <= SPLIT) {
			int init = 0;
			int marks = 0;
			for (int i = 0; i < n; i++)
				if (b[i] == '1')
					init |= (1 << (n-i-1));
				else if (b[i] == '?')
					marks |= (1 << (n-i-1));
			
			int ans = 0;
			for (int msk = marks; msk >= 0; msk = (msk-1)&marks) {
				ans += mask[init | msk];	
				if (msk == 0) break;
			}
			cout << ans << '\n';
			continue;
		}
		
		int x = (cc[1] <= SPLIT ? 0 : 1);
		
		int init = 0;
		int marks = 0;
		for (int i = 0; i < n; i++) {	
			if (b[i] == '?' && x == 0)
				init |= (1 << (n-i-1));
			
			if (b[i] == '1' && x == 1)
				init |= (1 << (n-i-1));
				
			if (x == 0 && b[i] == '1')
				marks |= (1 << (n-i-1));
				
			if (x == 1 && b[i] == '0')
				marks |= (1 << (n-i-1));
		}
			
		int ans = 0;
		for (int msk = marks; msk >= 0; msk = (msk-1)&marks) {
			if (__builtin_popcount(msk)%2 == cc[x] % 2)
				ans += dp[x][init | msk];
			else
				ans -= dp[x][init | msk];
			if (msk == 0) break;
		}
		
		cout << abs(ans) << '\n';
	}
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4432 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 1 ms 4432 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 2 ms 4432 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 1 ms 4432 KB Output is correct
10 Correct 2 ms 4432 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4432 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 1 ms 4432 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 2 ms 4432 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 1 ms 4432 KB Output is correct
10 Correct 2 ms 4432 KB Output is correct
11 Correct 209 ms 8520 KB Output is correct
12 Correct 217 ms 8008 KB Output is correct
13 Correct 188 ms 7500 KB Output is correct
14 Correct 184 ms 7496 KB Output is correct
15 Correct 179 ms 8444 KB Output is correct
16 Correct 234 ms 7752 KB Output is correct
17 Correct 235 ms 7748 KB Output is correct
18 Correct 115 ms 9544 KB Output is correct
19 Correct 191 ms 6480 KB Output is correct
20 Correct 200 ms 8008 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4432 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 1 ms 4432 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 2 ms 4432 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 1 ms 4432 KB Output is correct
10 Correct 2 ms 4432 KB Output is correct
11 Correct 209 ms 8520 KB Output is correct
12 Correct 217 ms 8008 KB Output is correct
13 Correct 188 ms 7500 KB Output is correct
14 Correct 184 ms 7496 KB Output is correct
15 Correct 179 ms 8444 KB Output is correct
16 Correct 234 ms 7752 KB Output is correct
17 Correct 235 ms 7748 KB Output is correct
18 Correct 115 ms 9544 KB Output is correct
19 Correct 191 ms 6480 KB Output is correct
20 Correct 200 ms 8008 KB Output is correct
21 Correct 300 ms 8520 KB Output is correct
22 Correct 256 ms 8784 KB Output is correct
23 Correct 256 ms 7600 KB Output is correct
24 Correct 243 ms 7496 KB Output is correct
25 Correct 256 ms 9412 KB Output is correct
26 Correct 284 ms 8008 KB Output is correct
27 Correct 286 ms 8008 KB Output is correct
28 Correct 122 ms 10580 KB Output is correct
29 Correct 268 ms 6472 KB Output is correct
30 Correct 267 ms 8824 KB Output is correct
31 Correct 278 ms 8528 KB Output is correct
32 Correct 269 ms 8520 KB Output is correct
33 Correct 206 ms 7408 KB Output is correct
34 Correct 264 ms 7608 KB Output is correct
35 Correct 292 ms 8008 KB Output is correct
36 Correct 120 ms 6472 KB Output is correct
37 Correct 191 ms 8520 KB Output is correct
38 Correct 241 ms 6480 KB Output is correct
39 Correct 327 ms 7732 KB Output is correct
40 Correct 277 ms 7496 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4432 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 1 ms 4432 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 2 ms 4432 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 1 ms 4432 KB Output is correct
10 Correct 2 ms 4432 KB Output is correct
11 Correct 40 ms 15092 KB Output is correct
12 Correct 49 ms 15104 KB Output is correct
13 Correct 70 ms 15080 KB Output is correct
14 Correct 54 ms 15092 KB Output is correct
15 Correct 54 ms 15080 KB Output is correct
16 Correct 49 ms 15084 KB Output is correct
17 Correct 49 ms 15080 KB Output is correct
18 Correct 32 ms 15084 KB Output is correct
19 Correct 147 ms 14944 KB Output is correct
20 Correct 45 ms 14940 KB Output is correct
21 Correct 42 ms 14960 KB Output is correct
22 Correct 58 ms 14940 KB Output is correct
23 Correct 46 ms 15088 KB Output is correct
24 Correct 54 ms 15096 KB Output is correct
25 Correct 61 ms 15080 KB Output is correct
26 Correct 38 ms 14836 KB Output is correct
27 Correct 39 ms 15112 KB Output is correct
28 Correct 217 ms 14836 KB Output is correct
29 Correct 46 ms 15088 KB Output is correct
30 Correct 57 ms 14960 KB Output is correct
31 Correct 46 ms 15080 KB Output is correct
32 Correct 49 ms 15080 KB Output is correct
33 Correct 64 ms 14944 KB Output is correct
34 Correct 34 ms 14836 KB Output is correct
35 Correct 56 ms 15064 KB Output is correct
36 Correct 56 ms 15084 KB Output is correct
37 Correct 63 ms 15084 KB Output is correct
38 Correct 65 ms 15084 KB Output is correct
39 Correct 53 ms 15084 KB Output is correct
40 Correct 58 ms 15092 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4432 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 2 ms 4432 KB Output is correct
4 Correct 1 ms 4432 KB Output is correct
5 Correct 1 ms 4432 KB Output is correct
6 Correct 2 ms 4432 KB Output is correct
7 Correct 1 ms 4432 KB Output is correct
8 Correct 1 ms 4432 KB Output is correct
9 Correct 1 ms 4432 KB Output is correct
10 Correct 2 ms 4432 KB Output is correct
11 Correct 209 ms 8520 KB Output is correct
12 Correct 217 ms 8008 KB Output is correct
13 Correct 188 ms 7500 KB Output is correct
14 Correct 184 ms 7496 KB Output is correct
15 Correct 179 ms 8444 KB Output is correct
16 Correct 234 ms 7752 KB Output is correct
17 Correct 235 ms 7748 KB Output is correct
18 Correct 115 ms 9544 KB Output is correct
19 Correct 191 ms 6480 KB Output is correct
20 Correct 200 ms 8008 KB Output is correct
21 Correct 300 ms 8520 KB Output is correct
22 Correct 256 ms 8784 KB Output is correct
23 Correct 256 ms 7600 KB Output is correct
24 Correct 243 ms 7496 KB Output is correct
25 Correct 256 ms 9412 KB Output is correct
26 Correct 284 ms 8008 KB Output is correct
27 Correct 286 ms 8008 KB Output is correct
28 Correct 122 ms 10580 KB Output is correct
29 Correct 268 ms 6472 KB Output is correct
30 Correct 267 ms 8824 KB Output is correct
31 Correct 278 ms 8528 KB Output is correct
32 Correct 269 ms 8520 KB Output is correct
33 Correct 206 ms 7408 KB Output is correct
34 Correct 264 ms 7608 KB Output is correct
35 Correct 292 ms 8008 KB Output is correct
36 Correct 120 ms 6472 KB Output is correct
37 Correct 191 ms 8520 KB Output is correct
38 Correct 241 ms 6480 KB Output is correct
39 Correct 327 ms 7732 KB Output is correct
40 Correct 277 ms 7496 KB Output is correct
41 Correct 40 ms 15092 KB Output is correct
42 Correct 49 ms 15104 KB Output is correct
43 Correct 70 ms 15080 KB Output is correct
44 Correct 54 ms 15092 KB Output is correct
45 Correct 54 ms 15080 KB Output is correct
46 Correct 49 ms 15084 KB Output is correct
47 Correct 49 ms 15080 KB Output is correct
48 Correct 32 ms 15084 KB Output is correct
49 Correct 147 ms 14944 KB Output is correct
50 Correct 45 ms 14940 KB Output is correct
51 Correct 42 ms 14960 KB Output is correct
52 Correct 58 ms 14940 KB Output is correct
53 Correct 46 ms 15088 KB Output is correct
54 Correct 54 ms 15096 KB Output is correct
55 Correct 61 ms 15080 KB Output is correct
56 Correct 38 ms 14836 KB Output is correct
57 Correct 39 ms 15112 KB Output is correct
58 Correct 217 ms 14836 KB Output is correct
59 Correct 46 ms 15088 KB Output is correct
60 Correct 57 ms 14960 KB Output is correct
61 Correct 46 ms 15080 KB Output is correct
62 Correct 49 ms 15080 KB Output is correct
63 Correct 64 ms 14944 KB Output is correct
64 Correct 34 ms 14836 KB Output is correct
65 Correct 56 ms 15064 KB Output is correct
66 Correct 56 ms 15084 KB Output is correct
67 Correct 63 ms 15084 KB Output is correct
68 Correct 65 ms 15084 KB Output is correct
69 Correct 53 ms 15084 KB Output is correct
70 Correct 58 ms 15092 KB Output is correct
71 Correct 390 ms 19744 KB Output is correct
72 Correct 404 ms 19944 KB Output is correct
73 Correct 822 ms 18408 KB Output is correct
74 Correct 543 ms 18920 KB Output is correct
75 Correct 399 ms 20716 KB Output is correct
76 Correct 567 ms 19176 KB Output is correct
77 Correct 607 ms 18920 KB Output is correct
78 Correct 179 ms 22760 KB Output is correct
79 Execution timed out 2064 ms 23384 KB Time limit exceeded
80 Halted 0 ms 0 KB -