oj.uz

Submission #330276

# Submission time Handle Problem Language Result Execution time Memory
330276 2020-11-24T11:49:06 Z Kevin_Zhang_TW Snake Escaping (JOI18_snake_escaping) C++17
100 / 100
 1781 ms 20108 KB 
#include <bits/stdc++.h>
//#pragma GCC optimize("Ofast")
#pragma GCC target("popcnt")
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T>
bool chmax(T &a, T b) { return a < b ? (a = b, true) : false; }
template<class T> 
bool chmin(T &a, T b) { return b < a ? (a = b, true) : false; }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U>
void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T>
void debug(T L, T R) { while (L != R) cerr << *L << " \n"[next(L) == R], ++L; }
#else
#define DE(...) 0
#define debug(...) 0
#endif
 
const int MAX_N = 20;
int n, q;
char w[(1<<MAX_N) + 10], com[MAX_N << 1];
int dp[1<<MAX_N];
void init() {
	for (int i = 0;i < 1<<n;++i)
		dp[i] = w[i] - '0';
	for (int i = 0;i < n;++i)
		for (int s = 0;s < 1<<n;++s)
			if (s>>i&1)
				dp[s] += dp[s^(1<<i)];
}
int32_t main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> n >> q >> w;
	init();
	for (int i = 0;i < q;++i) {
		cin >> com;
		int l = 0, r = (1<<n) - 1, sub = 0;
		reverse(com, com + n);
		for (int i = 0;i < n;++i) {
			if (com[i] == '0') r ^= 1<<i;
			if (com[i] == '1') l ^= 1<<i;
			if (com[i] == '?') sub |= 1<<i;
		} 
		int res = 0;
		if (__builtin_popcount(sub) <= 10) {
			for (int s = sub ; s ;(--s) &= sub) {
				res += w[l | s] - '0';
			}
			res += w[l] - '0';
		}
		else {
			int ls = __builtin_popcount(l);
			for (int s = l ; s ; (--s) &= l) {
				int x = ((__builtin_popcount(s)^ls)&1?-1:1) * dp[s | sub];
				res += x;
			} 
			res += (ls&1?-1:1) * dp[sub];
			DE(res);
		} 
		cout << abs(res) << '\n';
	}
}

Compilation message

snake_escaping.cpp: In function 'int32_t main()':
snake_escaping.cpp:20:17: warning: statement has no effect [-Wunused-value]
   20 | #define DE(...) 0
      |                 ^
snake_escaping.cpp:63:4: note: in expansion of macro 'DE'
   63 |    DE(res);
      |    ^~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 279 ms 15084 KB Output is correct
12 Correct 284 ms 14444 KB Output is correct
13 Correct 235 ms 13676 KB Output is correct
14 Correct 234 ms 13804 KB Output is correct
15 Correct 303 ms 14828 KB Output is correct
16 Correct 262 ms 14060 KB Output is correct
17 Correct 265 ms 13932 KB Output is correct
18 Correct 1376 ms 15852 KB Output is correct
19 Correct 236 ms 12908 KB Output is correct
20 Correct 322 ms 14572 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 279 ms 15084 KB Output is correct
12 Correct 284 ms 14444 KB Output is correct
13 Correct 235 ms 13676 KB Output is correct
14 Correct 234 ms 13804 KB Output is correct
15 Correct 303 ms 14828 KB Output is correct
16 Correct 262 ms 14060 KB Output is correct
17 Correct 265 ms 13932 KB Output is correct
18 Correct 1376 ms 15852 KB Output is correct
19 Correct 236 ms 12908 KB Output is correct
20 Correct 322 ms 14572 KB Output is correct
21 Correct 424 ms 11884 KB Output is correct
22 Correct 419 ms 12012 KB Output is correct
23 Correct 267 ms 10988 KB Output is correct
24 Correct 261 ms 10860 KB Output is correct
25 Correct 540 ms 12908 KB Output is correct
26 Correct 309 ms 11500 KB Output is correct
27 Correct 315 ms 11244 KB Output is correct
28 Correct 216 ms 20108 KB Output is correct
29 Correct 257 ms 15852 KB Output is correct
30 Correct 480 ms 18016 KB Output is correct
31 Correct 325 ms 17900 KB Output is correct
32 Correct 287 ms 17908 KB Output is correct
33 Correct 269 ms 16748 KB Output is correct
34 Correct 276 ms 17004 KB Output is correct
35 Correct 317 ms 17516 KB Output is correct
36 Correct 199 ms 15980 KB Output is correct
37 Correct 298 ms 18028 KB Output is correct
38 Correct 263 ms 16108 KB Output is correct
39 Correct 292 ms 17132 KB Output is correct
40 Correct 272 ms 16992 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 113 ms 7788 KB Output is correct
12 Correct 61 ms 7916 KB Output is correct
13 Correct 45 ms 7660 KB Output is correct
14 Correct 52 ms 7660 KB Output is correct
15 Correct 44 ms 7916 KB Output is correct
16 Correct 60 ms 7788 KB Output is correct
17 Correct 61 ms 7788 KB Output is correct
18 Correct 40 ms 7916 KB Output is correct
19 Correct 45 ms 7556 KB Output is correct
20 Correct 90 ms 7788 KB Output is correct
21 Correct 117 ms 7788 KB Output is correct
22 Correct 53 ms 7660 KB Output is correct
23 Correct 45 ms 7660 KB Output is correct
24 Correct 49 ms 7660 KB Output is correct
25 Correct 63 ms 7788 KB Output is correct
26 Correct 37 ms 7660 KB Output is correct
27 Correct 107 ms 7916 KB Output is correct
28 Correct 44 ms 7788 KB Output is correct
29 Correct 50 ms 7788 KB Output is correct
30 Correct 48 ms 7660 KB Output is correct
31 Correct 42 ms 7660 KB Output is correct
32 Correct 61 ms 7788 KB Output is correct
33 Correct 58 ms 7788 KB Output is correct
34 Correct 37 ms 7660 KB Output is correct
35 Correct 61 ms 7660 KB Output is correct
36 Correct 60 ms 7788 KB Output is correct
37 Correct 63 ms 7788 KB Output is correct
38 Correct 62 ms 7788 KB Output is correct
39 Correct 60 ms 7660 KB Output is correct
40 Correct 61 ms 7788 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 279 ms 15084 KB Output is correct
12 Correct 284 ms 14444 KB Output is correct
13 Correct 235 ms 13676 KB Output is correct
14 Correct 234 ms 13804 KB Output is correct
15 Correct 303 ms 14828 KB Output is correct
16 Correct 262 ms 14060 KB Output is correct
17 Correct 265 ms 13932 KB Output is correct
18 Correct 1376 ms 15852 KB Output is correct
19 Correct 236 ms 12908 KB Output is correct
20 Correct 322 ms 14572 KB Output is correct
21 Correct 424 ms 11884 KB Output is correct
22 Correct 419 ms 12012 KB Output is correct
23 Correct 267 ms 10988 KB Output is correct
24 Correct 261 ms 10860 KB Output is correct
25 Correct 540 ms 12908 KB Output is correct
26 Correct 309 ms 11500 KB Output is correct
27 Correct 315 ms 11244 KB Output is correct
28 Correct 216 ms 20108 KB Output is correct
29 Correct 257 ms 15852 KB Output is correct
30 Correct 480 ms 18016 KB Output is correct
31 Correct 325 ms 17900 KB Output is correct
32 Correct 287 ms 17908 KB Output is correct
33 Correct 269 ms 16748 KB Output is correct
34 Correct 276 ms 17004 KB Output is correct
35 Correct 317 ms 17516 KB Output is correct
36 Correct 199 ms 15980 KB Output is correct
37 Correct 298 ms 18028 KB Output is correct
38 Correct 263 ms 16108 KB Output is correct
39 Correct 292 ms 17132 KB Output is correct
40 Correct 272 ms 16992 KB Output is correct
41 Correct 113 ms 7788 KB Output is correct
42 Correct 61 ms 7916 KB Output is correct
43 Correct 45 ms 7660 KB Output is correct
44 Correct 52 ms 7660 KB Output is correct
45 Correct 44 ms 7916 KB Output is correct
46 Correct 60 ms 7788 KB Output is correct
47 Correct 61 ms 7788 KB Output is correct
48 Correct 40 ms 7916 KB Output is correct
49 Correct 45 ms 7556 KB Output is correct
50 Correct 90 ms 7788 KB Output is correct
51 Correct 117 ms 7788 KB Output is correct
52 Correct 53 ms 7660 KB Output is correct
53 Correct 45 ms 7660 KB Output is correct
54 Correct 49 ms 7660 KB Output is correct
55 Correct 63 ms 7788 KB Output is correct
56 Correct 37 ms 7660 KB Output is correct
57 Correct 107 ms 7916 KB Output is correct
58 Correct 44 ms 7788 KB Output is correct
59 Correct 50 ms 7788 KB Output is correct
60 Correct 48 ms 7660 KB Output is correct
61 Correct 42 ms 7660 KB Output is correct
62 Correct 61 ms 7788 KB Output is correct
63 Correct 58 ms 7788 KB Output is correct
64 Correct 37 ms 7660 KB Output is correct
65 Correct 61 ms 7660 KB Output is correct
66 Correct 60 ms 7788 KB Output is correct
67 Correct 63 ms 7788 KB Output is correct
68 Correct 62 ms 7788 KB Output is correct
69 Correct 60 ms 7660 KB Output is correct
70 Correct 61 ms 7788 KB Output is correct
71 Correct 1681 ms 12012 KB Output is correct
72 Correct 722 ms 12140 KB Output is correct
73 Correct 420 ms 10732 KB Output is correct
74 Correct 538 ms 10988 KB Output is correct
75 Correct 370 ms 13292 KB Output is correct
76 Correct 705 ms 11600 KB Output is correct
77 Correct 658 ms 11372 KB Output is correct
78 Correct 271 ms 15616 KB Output is correct
79 Correct 359 ms 9452 KB Output is correct
80 Correct 1250 ms 12564 KB Output is correct
81 Correct 1781 ms 12532 KB Output is correct
82 Correct 553 ms 11244 KB Output is correct
83 Correct 361 ms 10348 KB Output is correct
84 Correct 463 ms 11372 KB Output is correct
85 Correct 663 ms 11576 KB Output is correct
86 Correct 242 ms 9424 KB Output is correct
87 Correct 1622 ms 12344 KB Output is correct
88 Correct 358 ms 9196 KB Output is correct
89 Correct 451 ms 10988 KB Output is correct
90 Correct 453 ms 11388 KB Output is correct
91 Correct 328 ms 10476 KB Output is correct
92 Correct 695 ms 11628 KB Output is correct
93 Correct 657 ms 11500 KB Output is correct
94 Correct 249 ms 9220 KB Output is correct
95 Correct 698 ms 11372 KB Output is correct
96 Correct 737 ms 11004 KB Output is correct
97 Correct 741 ms 12036 KB Output is correct
98 Correct 749 ms 11904 KB Output is correct
99 Correct 733 ms 11308 KB Output is correct
100 Correct 737 ms 11328 KB Output is correct