oj.uz

Submission #101827

# Submission time Handle Problem Language Result Execution time Memory
101827 2019-03-20T12:13:35 Z KCSC Snake Escaping (JOI18_snake_escaping) C++14
100 / 100
 1161 ms 43076 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; scanf("%d %d\n%s\n", &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; 
		scanf("%s\n", 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] - '0'; } }
		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); } }
		printf("%d\n", ans); }		   
	return 0; }

Compilation message

snake_escaping.cpp: In function 'int main()':
snake_escaping.cpp:14:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int n, q; scanf("%d %d\n%s\n", &n, &q, str);
            ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
snake_escaping.cpp:26:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s\n", aux); reverse(aux, aux + n);
   ~~~~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

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

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 317 ms 4272 KB Output is correct
12 Correct 343 ms 14808 KB Output is correct
13 Correct 326 ms 14096 KB Output is correct
14 Correct 292 ms 14216 KB Output is correct
15 Correct 384 ms 15108 KB Output is correct
16 Correct 321 ms 14200 KB Output is correct
17 Correct 316 ms 14440 KB Output is correct
18 Correct 231 ms 15992 KB Output is correct
19 Correct 257 ms 13176 KB Output is correct
20 Correct 359 ms 14712 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 317 ms 4272 KB Output is correct
12 Correct 343 ms 14808 KB Output is correct
13 Correct 326 ms 14096 KB Output is correct
14 Correct 292 ms 14216 KB Output is correct
15 Correct 384 ms 15108 KB Output is correct
16 Correct 321 ms 14200 KB Output is correct
17 Correct 316 ms 14440 KB Output is correct
18 Correct 231 ms 15992 KB Output is correct
19 Correct 257 ms 13176 KB Output is correct
20 Correct 359 ms 14712 KB Output is correct
21 Correct 491 ms 18100 KB Output is correct
22 Correct 435 ms 18392 KB Output is correct
23 Correct 401 ms 17276 KB Output is correct
24 Correct 367 ms 17144 KB Output is correct
25 Correct 390 ms 19144 KB Output is correct
26 Correct 432 ms 17656 KB Output is correct
27 Correct 428 ms 17656 KB Output is correct
28 Correct 289 ms 20080 KB Output is correct
29 Correct 394 ms 16144 KB Output is correct
30 Correct 460 ms 18424 KB Output is correct
31 Correct 402 ms 18168 KB Output is correct
32 Correct 383 ms 18040 KB Output is correct
33 Correct 330 ms 17144 KB Output is correct
34 Correct 355 ms 17116 KB Output is correct
35 Correct 376 ms 17624 KB Output is correct
36 Correct 305 ms 16120 KB Output is correct
37 Correct 414 ms 18168 KB Output is correct
38 Correct 335 ms 16120 KB Output is correct
39 Correct 391 ms 17272 KB Output is correct
40 Correct 380 ms 17244 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 81 ms 14172 KB Output is correct
12 Correct 80 ms 14320 KB Output is correct
13 Correct 88 ms 14240 KB Output is correct
14 Correct 99 ms 14204 KB Output is correct
15 Correct 91 ms 14328 KB Output is correct
16 Correct 116 ms 14300 KB Output is correct
17 Correct 91 ms 14276 KB Output is correct
18 Correct 69 ms 14456 KB Output is correct
19 Correct 77 ms 14208 KB Output is correct
20 Correct 78 ms 14332 KB Output is correct
21 Correct 123 ms 14376 KB Output is correct
22 Correct 95 ms 14388 KB Output is correct
23 Correct 81 ms 14328 KB Output is correct
24 Correct 98 ms 14328 KB Output is correct
25 Correct 108 ms 14364 KB Output is correct
26 Correct 60 ms 14200 KB Output is correct
27 Correct 71 ms 14328 KB Output is correct
28 Correct 75 ms 14200 KB Output is correct
29 Correct 87 ms 14328 KB Output is correct
30 Correct 96 ms 14328 KB Output is correct
31 Correct 78 ms 14204 KB Output is correct
32 Correct 107 ms 14328 KB Output is correct
33 Correct 92 ms 14328 KB Output is correct
34 Correct 65 ms 14200 KB Output is correct
35 Correct 96 ms 14268 KB Output is correct
36 Correct 87 ms 14200 KB Output is correct
37 Correct 83 ms 14328 KB Output is correct
38 Correct 92 ms 14328 KB Output is correct
39 Correct 82 ms 14328 KB Output is correct
40 Correct 83 ms 14304 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 3 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 3 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 2 ms 384 KB Output is correct
11 Correct 317 ms 4272 KB Output is correct
12 Correct 343 ms 14808 KB Output is correct
13 Correct 326 ms 14096 KB Output is correct
14 Correct 292 ms 14216 KB Output is correct
15 Correct 384 ms 15108 KB Output is correct
16 Correct 321 ms 14200 KB Output is correct
17 Correct 316 ms 14440 KB Output is correct
18 Correct 231 ms 15992 KB Output is correct
19 Correct 257 ms 13176 KB Output is correct
20 Correct 359 ms 14712 KB Output is correct
21 Correct 491 ms 18100 KB Output is correct
22 Correct 435 ms 18392 KB Output is correct
23 Correct 401 ms 17276 KB Output is correct
24 Correct 367 ms 17144 KB Output is correct
25 Correct 390 ms 19144 KB Output is correct
26 Correct 432 ms 17656 KB Output is correct
27 Correct 428 ms 17656 KB Output is correct
28 Correct 289 ms 20080 KB Output is correct
29 Correct 394 ms 16144 KB Output is correct
30 Correct 460 ms 18424 KB Output is correct
31 Correct 402 ms 18168 KB Output is correct
32 Correct 383 ms 18040 KB Output is correct
33 Correct 330 ms 17144 KB Output is correct
34 Correct 355 ms 17116 KB Output is correct
35 Correct 376 ms 17624 KB Output is correct
36 Correct 305 ms 16120 KB Output is correct
37 Correct 414 ms 18168 KB Output is correct
38 Correct 335 ms 16120 KB Output is correct
39 Correct 391 ms 17272 KB Output is correct
40 Correct 380 ms 17244 KB Output is correct
41 Correct 81 ms 14172 KB Output is correct
42 Correct 80 ms 14320 KB Output is correct
43 Correct 88 ms 14240 KB Output is correct
44 Correct 99 ms 14204 KB Output is correct
45 Correct 91 ms 14328 KB Output is correct
46 Correct 116 ms 14300 KB Output is correct
47 Correct 91 ms 14276 KB Output is correct
48 Correct 69 ms 14456 KB Output is correct
49 Correct 77 ms 14208 KB Output is correct
50 Correct 78 ms 14332 KB Output is correct
51 Correct 123 ms 14376 KB Output is correct
52 Correct 95 ms 14388 KB Output is correct
53 Correct 81 ms 14328 KB Output is correct
54 Correct 98 ms 14328 KB Output is correct
55 Correct 108 ms 14364 KB Output is correct
56 Correct 60 ms 14200 KB Output is correct
57 Correct 71 ms 14328 KB Output is correct
58 Correct 75 ms 14200 KB Output is correct
59 Correct 87 ms 14328 KB Output is correct
60 Correct 96 ms 14328 KB Output is correct
61 Correct 78 ms 14204 KB Output is correct
62 Correct 107 ms 14328 KB Output is correct
63 Correct 92 ms 14328 KB Output is correct
64 Correct 65 ms 14200 KB Output is correct
65 Correct 96 ms 14268 KB Output is correct
66 Correct 87 ms 14200 KB Output is correct
67 Correct 83 ms 14328 KB Output is correct
68 Correct 92 ms 14328 KB Output is correct
69 Correct 82 ms 14328 KB Output is correct
70 Correct 83 ms 14304 KB Output is correct
71 Correct 640 ms 40108 KB Output is correct
72 Correct 782 ms 40444 KB Output is correct
73 Correct 701 ms 38832 KB Output is correct
74 Correct 855 ms 39288 KB Output is correct
75 Correct 660 ms 41152 KB Output is correct
76 Correct 1020 ms 39584 KB Output is correct
77 Correct 968 ms 39348 KB Output is correct
78 Correct 419 ms 43076 KB Output is correct
79 Correct 457 ms 37276 KB Output is correct
80 Correct 697 ms 40264 KB Output is correct
81 Correct 1063 ms 40228 KB Output is correct
82 Correct 887 ms 39184 KB Output is correct
83 Correct 565 ms 38364 KB Output is correct
84 Correct 677 ms 39180 KB Output is correct
85 Correct 938 ms 39364 KB Output is correct
86 Correct 322 ms 37244 KB Output is correct
87 Correct 660 ms 40176 KB Output is correct
88 Correct 523 ms 37220 KB Output is correct
89 Correct 726 ms 38856 KB Output is correct
90 Correct 671 ms 39160 KB Output is correct
91 Correct 500 ms 38320 KB Output is correct
92 Correct 976 ms 39612 KB Output is correct
93 Correct 1161 ms 39656 KB Output is correct
94 Correct 378 ms 37216 KB Output is correct
95 Correct 873 ms 39416 KB Output is correct
96 Correct 871 ms 39376 KB Output is correct
97 Correct 923 ms 39388 KB Output is correct
98 Correct 876 ms 39388 KB Output is correct
99 Correct 701 ms 39416 KB Output is correct
100 Correct 803 ms 39292 KB Output is correct