oj.uz

Submission #330277

# Submission time Handle Problem Language Result Execution time Memory
330277 2020-11-24T11:50:03 Z Kevin_Zhang_TW Snake Escaping (JOI18_snake_escaping) C++17
100 / 100
 1934 ms 14188 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 492 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 492 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 333 ms 5100 KB Output is correct
12 Correct 301 ms 5228 KB Output is correct
13 Correct 270 ms 4460 KB Output is correct
14 Correct 261 ms 4460 KB Output is correct
15 Correct 342 ms 5356 KB Output is correct
16 Correct 269 ms 4588 KB Output is correct
17 Correct 286 ms 4588 KB Output is correct
18 Correct 1547 ms 6412 KB Output is correct
19 Correct 246 ms 3436 KB Output is correct
20 Correct 340 ms 5228 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 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 333 ms 5100 KB Output is correct
12 Correct 301 ms 5228 KB Output is correct
13 Correct 270 ms 4460 KB Output is correct
14 Correct 261 ms 4460 KB Output is correct
15 Correct 342 ms 5356 KB Output is correct
16 Correct 269 ms 4588 KB Output is correct
17 Correct 286 ms 4588 KB Output is correct
18 Correct 1547 ms 6412 KB Output is correct
19 Correct 246 ms 3436 KB Output is correct
20 Correct 340 ms 5228 KB Output is correct
21 Correct 445 ms 5996 KB Output is correct
22 Correct 453 ms 6252 KB Output is correct
23 Correct 280 ms 5356 KB Output is correct
24 Correct 269 ms 5100 KB Output is correct
25 Correct 588 ms 7020 KB Output is correct
26 Correct 325 ms 5612 KB Output is correct
27 Correct 333 ms 5484 KB Output is correct
28 Correct 230 ms 7148 KB Output is correct
29 Correct 258 ms 3436 KB Output is correct
30 Correct 508 ms 5740 KB Output is correct
31 Correct 353 ms 5356 KB Output is correct
32 Correct 297 ms 5356 KB Output is correct
33 Correct 276 ms 4332 KB Output is correct
34 Correct 287 ms 4204 KB Output is correct
35 Correct 339 ms 4588 KB Output is correct
36 Correct 200 ms 3052 KB Output is correct
37 Correct 311 ms 5100 KB Output is correct
38 Correct 264 ms 3052 KB Output is correct
39 Correct 297 ms 4332 KB Output is correct
40 Correct 276 ms 4076 KB Output is correct

Subtask #4
53.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 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 117 ms 6380 KB Output is correct
12 Correct 64 ms 6380 KB Output is correct
13 Correct 46 ms 6252 KB Output is correct
14 Correct 54 ms 6252 KB Output is correct
15 Correct 47 ms 6380 KB Output is correct
16 Correct 61 ms 6380 KB Output is correct
17 Correct 62 ms 6252 KB Output is correct
18 Correct 39 ms 6508 KB Output is correct
19 Correct 48 ms 6252 KB Output is correct
20 Correct 110 ms 6380 KB Output is correct
21 Correct 122 ms 6380 KB Output is correct
22 Correct 57 ms 6252 KB Output is correct
23 Correct 44 ms 6252 KB Output is correct
24 Correct 49 ms 6252 KB Output is correct
25 Correct 60 ms 6380 KB Output is correct
26 Correct 37 ms 6252 KB Output is correct
27 Correct 114 ms 6508 KB Output is correct
28 Correct 43 ms 6232 KB Output is correct
29 Correct 49 ms 6252 KB Output is correct
30 Correct 49 ms 6252 KB Output is correct
31 Correct 42 ms 6252 KB Output is correct
32 Correct 65 ms 6252 KB Output is correct
33 Correct 60 ms 6252 KB Output is correct
34 Correct 37 ms 6124 KB Output is correct
35 Correct 65 ms 6124 KB Output is correct
36 Correct 67 ms 6124 KB Output is correct
37 Correct 63 ms 6124 KB Output is correct
38 Correct 65 ms 6252 KB Output is correct
39 Correct 63 ms 6124 KB Output is correct
40 Correct 62 ms 6252 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 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 333 ms 5100 KB Output is correct
12 Correct 301 ms 5228 KB Output is correct
13 Correct 270 ms 4460 KB Output is correct
14 Correct 261 ms 4460 KB Output is correct
15 Correct 342 ms 5356 KB Output is correct
16 Correct 269 ms 4588 KB Output is correct
17 Correct 286 ms 4588 KB Output is correct
18 Correct 1547 ms 6412 KB Output is correct
19 Correct 246 ms 3436 KB Output is correct
20 Correct 340 ms 5228 KB Output is correct
21 Correct 445 ms 5996 KB Output is correct
22 Correct 453 ms 6252 KB Output is correct
23 Correct 280 ms 5356 KB Output is correct
24 Correct 269 ms 5100 KB Output is correct
25 Correct 588 ms 7020 KB Output is correct
26 Correct 325 ms 5612 KB Output is correct
27 Correct 333 ms 5484 KB Output is correct
28 Correct 230 ms 7148 KB Output is correct
29 Correct 258 ms 3436 KB Output is correct
30 Correct 508 ms 5740 KB Output is correct
31 Correct 353 ms 5356 KB Output is correct
32 Correct 297 ms 5356 KB Output is correct
33 Correct 276 ms 4332 KB Output is correct
34 Correct 287 ms 4204 KB Output is correct
35 Correct 339 ms 4588 KB Output is correct
36 Correct 200 ms 3052 KB Output is correct
37 Correct 311 ms 5100 KB Output is correct
38 Correct 264 ms 3052 KB Output is correct
39 Correct 297 ms 4332 KB Output is correct
40 Correct 276 ms 4076 KB Output is correct
41 Correct 117 ms 6380 KB Output is correct
42 Correct 64 ms 6380 KB Output is correct
43 Correct 46 ms 6252 KB Output is correct
44 Correct 54 ms 6252 KB Output is correct
45 Correct 47 ms 6380 KB Output is correct
46 Correct 61 ms 6380 KB Output is correct
47 Correct 62 ms 6252 KB Output is correct
48 Correct 39 ms 6508 KB Output is correct
49 Correct 48 ms 6252 KB Output is correct
50 Correct 110 ms 6380 KB Output is correct
51 Correct 122 ms 6380 KB Output is correct
52 Correct 57 ms 6252 KB Output is correct
53 Correct 44 ms 6252 KB Output is correct
54 Correct 49 ms 6252 KB Output is correct
55 Correct 60 ms 6380 KB Output is correct
56 Correct 37 ms 6252 KB Output is correct
57 Correct 114 ms 6508 KB Output is correct
58 Correct 43 ms 6232 KB Output is correct
59 Correct 49 ms 6252 KB Output is correct
60 Correct 49 ms 6252 KB Output is correct
61 Correct 42 ms 6252 KB Output is correct
62 Correct 65 ms 6252 KB Output is correct
63 Correct 60 ms 6252 KB Output is correct
64 Correct 37 ms 6124 KB Output is correct
65 Correct 65 ms 6124 KB Output is correct
66 Correct 67 ms 6124 KB Output is correct
67 Correct 63 ms 6124 KB Output is correct
68 Correct 65 ms 6252 KB Output is correct
69 Correct 63 ms 6124 KB Output is correct
70 Correct 62 ms 6252 KB Output is correct
71 Correct 1848 ms 11072 KB Output is correct
72 Correct 777 ms 11372 KB Output is correct
73 Correct 429 ms 9964 KB Output is correct
74 Correct 642 ms 10348 KB Output is correct
75 Correct 435 ms 12268 KB Output is correct
76 Correct 729 ms 10504 KB Output is correct
77 Correct 703 ms 10348 KB Output is correct
78 Correct 292 ms 14188 KB Output is correct
79 Correct 390 ms 8084 KB Output is correct
80 Correct 1627 ms 11244 KB Output is correct
81 Correct 1934 ms 11204 KB Output is correct
82 Correct 578 ms 9964 KB Output is correct
83 Correct 375 ms 9324 KB Output is correct
84 Correct 469 ms 10076 KB Output is correct
85 Correct 709 ms 10220 KB Output is correct
86 Correct 244 ms 8048 KB Output is correct
87 Correct 1755 ms 11012 KB Output is correct
88 Correct 382 ms 7916 KB Output is correct
89 Correct 467 ms 9708 KB Output is correct
90 Correct 469 ms 9964 KB Output is correct
91 Correct 336 ms 9196 KB Output is correct
92 Correct 747 ms 10348 KB Output is correct
93 Correct 693 ms 10348 KB Output is correct
94 Correct 266 ms 7788 KB Output is correct
95 Correct 767 ms 10064 KB Output is correct
96 Correct 770 ms 9952 KB Output is correct
97 Correct 759 ms 9708 KB Output is correct
98 Correct 785 ms 9716 KB Output is correct
99 Correct 766 ms 9780 KB Output is correct
100 Correct 753 ms 9708 KB Output is correct