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Submission #101813

# Submission time Handle Problem Language Result Execution time Memory
101813 2019-03-20T11:52:22 Z KCSC Snake Escaping (JOI18_snake_escaping) C++14
58 / 100
 2000 ms 14208 KB 
#include <bits/stdc++.h>
using namespace std;

const int DIM = 20;

char str[1 << DIM], aux[DIM];
int udp[1 << DIM], ddp[1 << DIM], cbit[1 << DIM];

int main(void) {
#ifdef HOME
	freopen("snake.in", "r", stdin);
	freopen("snake.out", "w", stdout);
#endif
	int n, q; cin >> n >> q >> str;
	for (int msk = 0; msk < (1 << n); ++msk) {
		cbit[msk] = cbit[msk >> 1] + (msk & 1);
		udp[msk] = ddp[msk] = (str[msk] -= '0'); }
	for (int b = 0; b < n; ++b) {
		for (int msk = 0; msk < (1 << n); ++msk) {
			if (msk & (1 << b)) {
				udp[msk ^ (1 << b)] += udp[msk]; }
			else {
				ddp[msk ^ (1 << b)] += ddp[msk]; } } }
	while (q--) {
		int msk0 = 0, msk1 = 0, mskq = 0; 
		cin >> aux; reverse(aux, aux + n);
		for (int i = 0; i < n; ++i) {
			if (aux[i] == '0') { msk0 ^= (1 << i); } 
			if (aux[i] == '1') { msk1 ^= (1 << i); }
			if (aux[i] == '?') { mskq ^= (1 << i); } }
		int ans = 0;
		if (cbit[mskq] <= 7) {
			for (int axm = mskq, nr = (1 << cbit[mskq]); nr; (--axm) &= mskq, --nr) {
				ans += str[axm ^ msk1]; } }
		else if (cbit[msk0] <= 7) {
			for (int axm = msk0, nr = (1 << cbit[msk0]); nr; (--axm) &= msk0, --nr) {
				ans += udp[msk1 ^ axm] * ((cbit[axm] & 1) ? -1 : 1); } }
		else if (cbit[msk1] <= 7) {
			for (int axm = msk1, nr = (1 << cbit[msk1]); nr; (--axm) &= msk1, --nr) {
				ans += ddp[mskq ^ msk1 ^ axm] * ((cbit[axm] & 1) ? -1 : 1); } }
		cout << ans << "\n"; }		   
	return 0; }

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Execution timed out 2045 ms 4484 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Execution timed out 2045 ms 4484 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 218 ms 13824 KB Output is correct
12 Correct 237 ms 13944 KB Output is correct
13 Correct 224 ms 13996 KB Output is correct
14 Correct 243 ms 13784 KB Output is correct
15 Correct 220 ms 14200 KB Output is correct
16 Correct 295 ms 13932 KB Output is correct
17 Correct 270 ms 13916 KB Output is correct
18 Correct 204 ms 14208 KB Output is correct
19 Correct 224 ms 13816 KB Output is correct
20 Correct 222 ms 13944 KB Output is correct
21 Correct 230 ms 14000 KB Output is correct
22 Correct 248 ms 14072 KB Output is correct
23 Correct 195 ms 13944 KB Output is correct
24 Correct 232 ms 13944 KB Output is correct
25 Correct 251 ms 13944 KB Output is correct
26 Correct 175 ms 13796 KB Output is correct
27 Correct 190 ms 13948 KB Output is correct
28 Correct 196 ms 13688 KB Output is correct
29 Correct 208 ms 13820 KB Output is correct
30 Correct 250 ms 13944 KB Output is correct
31 Correct 258 ms 13816 KB Output is correct
32 Correct 286 ms 13944 KB Output is correct
33 Correct 242 ms 13944 KB Output is correct
34 Correct 181 ms 13816 KB Output is correct
35 Correct 224 ms 13916 KB Output is correct
36 Correct 230 ms 13944 KB Output is correct
37 Correct 235 ms 13896 KB Output is correct
38 Correct 233 ms 13944 KB Output is correct
39 Correct 232 ms 13968 KB Output is correct
40 Correct 223 ms 13816 KB Output is correct

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 6 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Execution timed out 2045 ms 4484 KB Time limit exceeded
12 Halted 0 ms 0 KB -