oj.uz

Submission #330185

# Submission time Handle Problem Language Result Execution time Memory
330185 2020-11-24T06:11:29 Z Kevin_Zhang_TW Snake Escaping (JOI18_snake_escaping) C++17
100 / 100
 1785 ms 35180 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 267 ms 4332 KB Output is correct
12 Correct 266 ms 4204 KB Output is correct
13 Correct 228 ms 3308 KB Output is correct
14 Correct 228 ms 3436 KB Output is correct
15 Correct 292 ms 4332 KB Output is correct
16 Correct 267 ms 3820 KB Output is correct
17 Correct 258 ms 3564 KB Output is correct
18 Correct 1369 ms 5396 KB Output is correct
19 Correct 232 ms 2412 KB Output is correct
20 Correct 312 ms 4076 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 267 ms 4332 KB Output is correct
12 Correct 266 ms 4204 KB Output is correct
13 Correct 228 ms 3308 KB Output is correct
14 Correct 228 ms 3436 KB Output is correct
15 Correct 292 ms 4332 KB Output is correct
16 Correct 267 ms 3820 KB Output is correct
17 Correct 258 ms 3564 KB Output is correct
18 Correct 1369 ms 5396 KB Output is correct
19 Correct 232 ms 2412 KB Output is correct
20 Correct 312 ms 4076 KB Output is correct
21 Correct 408 ms 4588 KB Output is correct
22 Correct 409 ms 4716 KB Output is correct
23 Correct 260 ms 3564 KB Output is correct
24 Correct 256 ms 3564 KB Output is correct
25 Correct 522 ms 5484 KB Output is correct
26 Correct 307 ms 3948 KB Output is correct
27 Correct 310 ms 3948 KB Output is correct
28 Correct 216 ms 17212 KB Output is correct
29 Correct 260 ms 16108 KB Output is correct
30 Correct 476 ms 18284 KB Output is correct
31 Correct 326 ms 18156 KB Output is correct
32 Correct 286 ms 18220 KB Output is correct
33 Correct 271 ms 17132 KB Output is correct
34 Correct 276 ms 17132 KB Output is correct
35 Correct 314 ms 17644 KB Output is correct
36 Correct 200 ms 16108 KB Output is correct
37 Correct 286 ms 18148 KB Output is correct
38 Correct 265 ms 16108 KB Output is correct
39 Correct 300 ms 17388 KB Output is correct
40 Correct 269 ms 17132 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 108 ms 5740 KB Output is correct
12 Correct 60 ms 5740 KB Output is correct
13 Correct 45 ms 5740 KB Output is correct
14 Correct 50 ms 5612 KB Output is correct
15 Correct 43 ms 5740 KB Output is correct
16 Correct 61 ms 5740 KB Output is correct
17 Correct 56 ms 5740 KB Output is correct
18 Correct 38 ms 6892 KB Output is correct
19 Correct 43 ms 7660 KB Output is correct
20 Correct 84 ms 7788 KB Output is correct
21 Correct 114 ms 7788 KB Output is correct
22 Correct 54 ms 7788 KB Output is correct
23 Correct 44 ms 7660 KB Output is correct
24 Correct 49 ms 7788 KB Output is correct
25 Correct 57 ms 7788 KB Output is correct
26 Correct 37 ms 7660 KB Output is correct
27 Correct 105 ms 7788 KB Output is correct
28 Correct 44 ms 7660 KB Output is correct
29 Correct 49 ms 7788 KB Output is correct
30 Correct 48 ms 7788 KB Output is correct
31 Correct 41 ms 7660 KB Output is correct
32 Correct 59 ms 7788 KB Output is correct
33 Correct 59 ms 7788 KB Output is correct
34 Correct 38 ms 7660 KB Output is correct
35 Correct 59 ms 7788 KB Output is correct
36 Correct 60 ms 7788 KB Output is correct
37 Correct 60 ms 7700 KB Output is correct
38 Correct 60 ms 7788 KB Output is correct
39 Correct 61 ms 7788 KB Output is correct
40 Correct 59 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 267 ms 4332 KB Output is correct
12 Correct 266 ms 4204 KB Output is correct
13 Correct 228 ms 3308 KB Output is correct
14 Correct 228 ms 3436 KB Output is correct
15 Correct 292 ms 4332 KB Output is correct
16 Correct 267 ms 3820 KB Output is correct
17 Correct 258 ms 3564 KB Output is correct
18 Correct 1369 ms 5396 KB Output is correct
19 Correct 232 ms 2412 KB Output is correct
20 Correct 312 ms 4076 KB Output is correct
21 Correct 408 ms 4588 KB Output is correct
22 Correct 409 ms 4716 KB Output is correct
23 Correct 260 ms 3564 KB Output is correct
24 Correct 256 ms 3564 KB Output is correct
25 Correct 522 ms 5484 KB Output is correct
26 Correct 307 ms 3948 KB Output is correct
27 Correct 310 ms 3948 KB Output is correct
28 Correct 216 ms 17212 KB Output is correct
29 Correct 260 ms 16108 KB Output is correct
30 Correct 476 ms 18284 KB Output is correct
31 Correct 326 ms 18156 KB Output is correct
32 Correct 286 ms 18220 KB Output is correct
33 Correct 271 ms 17132 KB Output is correct
34 Correct 276 ms 17132 KB Output is correct
35 Correct 314 ms 17644 KB Output is correct
36 Correct 200 ms 16108 KB Output is correct
37 Correct 286 ms 18148 KB Output is correct
38 Correct 265 ms 16108 KB Output is correct
39 Correct 300 ms 17388 KB Output is correct
40 Correct 269 ms 17132 KB Output is correct
41 Correct 108 ms 5740 KB Output is correct
42 Correct 60 ms 5740 KB Output is correct
43 Correct 45 ms 5740 KB Output is correct
44 Correct 50 ms 5612 KB Output is correct
45 Correct 43 ms 5740 KB Output is correct
46 Correct 61 ms 5740 KB Output is correct
47 Correct 56 ms 5740 KB Output is correct
48 Correct 38 ms 6892 KB Output is correct
49 Correct 43 ms 7660 KB Output is correct
50 Correct 84 ms 7788 KB Output is correct
51 Correct 114 ms 7788 KB Output is correct
52 Correct 54 ms 7788 KB Output is correct
53 Correct 44 ms 7660 KB Output is correct
54 Correct 49 ms 7788 KB Output is correct
55 Correct 57 ms 7788 KB Output is correct
56 Correct 37 ms 7660 KB Output is correct
57 Correct 105 ms 7788 KB Output is correct
58 Correct 44 ms 7660 KB Output is correct
59 Correct 49 ms 7788 KB Output is correct
60 Correct 48 ms 7788 KB Output is correct
61 Correct 41 ms 7660 KB Output is correct
62 Correct 59 ms 7788 KB Output is correct
63 Correct 59 ms 7788 KB Output is correct
64 Correct 38 ms 7660 KB Output is correct
65 Correct 59 ms 7788 KB Output is correct
66 Correct 60 ms 7788 KB Output is correct
67 Correct 60 ms 7700 KB Output is correct
68 Correct 60 ms 7788 KB Output is correct
69 Correct 61 ms 7788 KB Output is correct
70 Correct 59 ms 7788 KB Output is correct
71 Correct 1733 ms 32236 KB Output is correct
72 Correct 732 ms 32492 KB Output is correct
73 Correct 420 ms 30828 KB Output is correct
74 Correct 558 ms 31084 KB Output is correct
75 Correct 382 ms 33132 KB Output is correct
76 Correct 694 ms 31596 KB Output is correct
77 Correct 664 ms 31340 KB Output is correct
78 Correct 285 ms 35180 KB Output is correct
79 Correct 383 ms 29124 KB Output is correct
80 Correct 1185 ms 32236 KB Output is correct
81 Correct 1785 ms 32236 KB Output is correct
82 Correct 567 ms 31084 KB Output is correct
83 Correct 381 ms 30248 KB Output is correct
84 Correct 467 ms 31084 KB Output is correct
85 Correct 661 ms 31340 KB Output is correct
86 Correct 248 ms 29060 KB Output is correct
87 Correct 1618 ms 32108 KB Output is correct
88 Correct 375 ms 29292 KB Output is correct
89 Correct 475 ms 30828 KB Output is correct
90 Correct 466 ms 31212 KB Output is correct
91 Correct 337 ms 30444 KB Output is correct
92 Correct 709 ms 31724 KB Output is correct
93 Correct 659 ms 31340 KB Output is correct
94 Correct 261 ms 29036 KB Output is correct
95 Correct 704 ms 31200 KB Output is correct
96 Correct 707 ms 31212 KB Output is correct
97 Correct 702 ms 31352 KB Output is correct
98 Correct 714 ms 31240 KB Output is correct
99 Correct 709 ms 31244 KB Output is correct
100 Correct 698 ms 31212 KB Output is correct