Submission #1055663

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1055663	2024-08-13T02:44:08 Z	coolsentenceidontremember	Amusement Park (CEOI19_amusementpark)	C++17	100 / 100	1309 ms	2904 KB

amusementpark

#include<bits/stdc++.h>

#pragma GCC optimize("O3", "unroll-loops")


#define ll long long
#define ld long double
#define ff first
#define ss second
#define db double
#define time_begin() auto begin = chrono::high_resolution_clock::now()
#define time_end() auto end = chrono::high_resolution_clock::now(); auto elapsed = chrono::duration_cast<chrono::nanoseconds>(end-begin); auto sec = elapsed.count() * 1e-9; cerr << "\n\nExecution time: " << sec << " seconds";
#define check_time() cerr << "\nStatus : "; if (sec>1) cerr << "Time Limit Exceeded 1!!!1!111"; else cerr << "You good brother"
#define precision(x) fixed << setprecision((x))
#define check_ok() cout << "it aight" << '\n'
using namespace std;



void setIO(string s = ""){
 ios_base::sync_with_stdio(false);
 cin.tie(nullptr);
 cout.tie(nullptr);
 if (!s.empty()){
	freopen((s+".in").c_str(), "r", stdin);
	freopen((s+".out").c_str(), "w", stdout);
	}
}

const int N = 18;
const ll mod = 998244353;
const ll two_inv = 499122177;
bool ind[1<<N];
int adj[N];
ll dp[1<<N];




int main(){
  int n, m;
  cin >> n >> m;
  memset(adj, 0, sizeof adj);
  fill(ind, ind + (1<<n), 1);
  for (int i = 1; i <= m; i++){
  	int u, v;
  	cin >> u >> v;
  	u--; v--;
  	adj[u] |= (1<<v);
  	ind[(1<<u)|(1<<v)] = 0;
  }
  for (int mask = 1; mask < (1<<n); mask++){
  	for (int b = 0; b < n; b++){
  		if (mask & (1<<b) && !ind[mask^(1<<b)]){
  			ind[mask] = 0;
  			break;
		  }
	  }
  }
  memset(dp, 0, sizeof dp);
  dp[0] = 1;
  for (int mask = 1; mask < (1<<n); mask++){
  	for (int subset = mask; subset; subset = (subset-1)&mask){
  		if (ind[subset]){
  			int bc = __builtin_popcount(subset);
  			if (bc&1) dp[mask] = (dp[mask]+dp[mask^subset])%mod;
  			else dp[mask] = (dp[mask]-dp[mask^subset]+mod)%mod;
  			
		  }
	  }
  }
  int full = (1<<n)-1;
  dp[full] = (dp[full]+mod)%mod;
  ll ans = dp[full]*m%mod*two_inv%mod;
 // for (int mask = 0; mask < (1<<n); mask++) cout << mask << ' ' << ind[mask] << '\n';
  cout << ans;
  
}

Compilation message

amusementpark.cpp: In function 'void setIO(std::string)':
amusementpark.cpp:25:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |  freopen((s+".in").c_str(), "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
amusementpark.cpp:26:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |  freopen((s+".out").c_str(), "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2472 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2472 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct

Subtask #3
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2472 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2492 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2392 KB	Output is correct
29	Correct	1 ms	2392 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	1 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2396 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2396 KB	Output is correct
38	Correct	1 ms	2396 KB	Output is correct
39	Correct	1 ms	2396 KB	Output is correct
40	Correct	2 ms	2396 KB	Output is correct
41	Correct	1 ms	2396 KB	Output is correct
42	Correct	1 ms	2396 KB	Output is correct
43	Correct	1 ms	2396 KB	Output is correct
44	Correct	1 ms	2396 KB	Output is correct
45	Correct	1 ms	2396 KB	Output is correct
46	Correct	1 ms	2396 KB	Output is correct
47	Correct	1 ms	2396 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2396 KB	Output is correct
51	Correct	1 ms	2396 KB	Output is correct
52	Correct	1 ms	2396 KB	Output is correct
53	Correct	1 ms	2396 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2492 KB	Output is correct
59	Correct	1 ms	2392 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2396 KB	Output is correct
62	Correct	1 ms	2392 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2472 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2492 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2392 KB	Output is correct
29	Correct	1 ms	2392 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	1 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2396 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2396 KB	Output is correct
38	Correct	1 ms	2396 KB	Output is correct
39	Correct	1 ms	2396 KB	Output is correct
40	Correct	2 ms	2396 KB	Output is correct
41	Correct	1 ms	2396 KB	Output is correct
42	Correct	1 ms	2396 KB	Output is correct
43	Correct	1 ms	2396 KB	Output is correct
44	Correct	1 ms	2396 KB	Output is correct
45	Correct	1 ms	2396 KB	Output is correct
46	Correct	1 ms	2396 KB	Output is correct
47	Correct	1 ms	2396 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2396 KB	Output is correct
51	Correct	1 ms	2396 KB	Output is correct
52	Correct	1 ms	2396 KB	Output is correct
53	Correct	1 ms	2396 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2492 KB	Output is correct
59	Correct	1 ms	2392 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2396 KB	Output is correct
62	Correct	1 ms	2392 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct
65	Correct	8 ms	2504 KB	Output is correct
66	Correct	7 ms	2396 KB	Output is correct
67	Correct	6 ms	2396 KB	Output is correct
68	Correct	8 ms	2396 KB	Output is correct
69	Correct	13 ms	2396 KB	Output is correct
70	Correct	10 ms	2488 KB	Output is correct
71	Correct	12 ms	2396 KB	Output is correct
72	Correct	10 ms	2516 KB	Output is correct
73	Correct	8 ms	2396 KB	Output is correct
74	Correct	8 ms	2396 KB	Output is correct
75	Correct	8 ms	2440 KB	Output is correct
76	Correct	8 ms	2396 KB	Output is correct
77	Correct	21 ms	2396 KB	Output is correct
78	Correct	20 ms	2396 KB	Output is correct
79	Correct	19 ms	2532 KB	Output is correct
80	Correct	17 ms	2532 KB	Output is correct
81	Correct	17 ms	2392 KB	Output is correct
82	Correct	17 ms	2392 KB	Output is correct
83	Correct	16 ms	2396 KB	Output is correct
84	Correct	15 ms	2392 KB	Output is correct
85	Correct	41 ms	2396 KB	Output is correct
86	Correct	27 ms	2504 KB	Output is correct
87	Correct	28 ms	2396 KB	Output is correct
88	Correct	29 ms	2396 KB	Output is correct
89	Correct	22 ms	2396 KB	Output is correct
90	Correct	23 ms	2396 KB	Output is correct
91	Correct	23 ms	2396 KB	Output is correct
92	Correct	24 ms	2392 KB	Output is correct

Subtask #5
37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2392 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2396 KB	Output is correct
6	Correct	1 ms	2472 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	1 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2396 KB	Output is correct
11	Correct	1 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	1 ms	2396 KB	Output is correct
14	Correct	1 ms	2396 KB	Output is correct
15	Correct	1 ms	2396 KB	Output is correct
16	Correct	1 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	1 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	1 ms	2396 KB	Output is correct
22	Correct	1 ms	2396 KB	Output is correct
23	Correct	1 ms	2396 KB	Output is correct
24	Correct	1 ms	2396 KB	Output is correct
25	Correct	1 ms	2492 KB	Output is correct
26	Correct	1 ms	2396 KB	Output is correct
27	Correct	1 ms	2396 KB	Output is correct
28	Correct	1 ms	2392 KB	Output is correct
29	Correct	1 ms	2392 KB	Output is correct
30	Correct	1 ms	2396 KB	Output is correct
31	Correct	1 ms	2396 KB	Output is correct
32	Correct	1 ms	2396 KB	Output is correct
33	Correct	1 ms	2396 KB	Output is correct
34	Correct	1 ms	2396 KB	Output is correct
35	Correct	1 ms	2396 KB	Output is correct
36	Correct	1 ms	2396 KB	Output is correct
37	Correct	1 ms	2396 KB	Output is correct
38	Correct	1 ms	2396 KB	Output is correct
39	Correct	1 ms	2396 KB	Output is correct
40	Correct	2 ms	2396 KB	Output is correct
41	Correct	1 ms	2396 KB	Output is correct
42	Correct	1 ms	2396 KB	Output is correct
43	Correct	1 ms	2396 KB	Output is correct
44	Correct	1 ms	2396 KB	Output is correct
45	Correct	1 ms	2396 KB	Output is correct
46	Correct	1 ms	2396 KB	Output is correct
47	Correct	1 ms	2396 KB	Output is correct
48	Correct	1 ms	2396 KB	Output is correct
49	Correct	1 ms	2396 KB	Output is correct
50	Correct	1 ms	2396 KB	Output is correct
51	Correct	1 ms	2396 KB	Output is correct
52	Correct	1 ms	2396 KB	Output is correct
53	Correct	1 ms	2396 KB	Output is correct
54	Correct	1 ms	2396 KB	Output is correct
55	Correct	1 ms	2396 KB	Output is correct
56	Correct	1 ms	2396 KB	Output is correct
57	Correct	1 ms	2396 KB	Output is correct
58	Correct	1 ms	2492 KB	Output is correct
59	Correct	1 ms	2392 KB	Output is correct
60	Correct	1 ms	2396 KB	Output is correct
61	Correct	1 ms	2396 KB	Output is correct
62	Correct	1 ms	2392 KB	Output is correct
63	Correct	1 ms	2396 KB	Output is correct
64	Correct	1 ms	2396 KB	Output is correct
65	Correct	8 ms	2504 KB	Output is correct
66	Correct	7 ms	2396 KB	Output is correct
67	Correct	6 ms	2396 KB	Output is correct
68	Correct	8 ms	2396 KB	Output is correct
69	Correct	13 ms	2396 KB	Output is correct
70	Correct	10 ms	2488 KB	Output is correct
71	Correct	12 ms	2396 KB	Output is correct
72	Correct	10 ms	2516 KB	Output is correct
73	Correct	8 ms	2396 KB	Output is correct
74	Correct	8 ms	2396 KB	Output is correct
75	Correct	8 ms	2440 KB	Output is correct
76	Correct	8 ms	2396 KB	Output is correct
77	Correct	21 ms	2396 KB	Output is correct
78	Correct	20 ms	2396 KB	Output is correct
79	Correct	19 ms	2532 KB	Output is correct
80	Correct	17 ms	2532 KB	Output is correct
81	Correct	17 ms	2392 KB	Output is correct
82	Correct	17 ms	2392 KB	Output is correct
83	Correct	16 ms	2396 KB	Output is correct
84	Correct	15 ms	2392 KB	Output is correct
85	Correct	41 ms	2396 KB	Output is correct
86	Correct	27 ms	2504 KB	Output is correct
87	Correct	28 ms	2396 KB	Output is correct
88	Correct	29 ms	2396 KB	Output is correct
89	Correct	22 ms	2396 KB	Output is correct
90	Correct	23 ms	2396 KB	Output is correct
91	Correct	23 ms	2396 KB	Output is correct
92	Correct	24 ms	2392 KB	Output is correct
93	Correct	790 ms	2720 KB	Output is correct
94	Correct	749 ms	2720 KB	Output is correct
95	Correct	765 ms	2716 KB	Output is correct
96	Correct	593 ms	2724 KB	Output is correct
97	Correct	566 ms	2904 KB	Output is correct
98	Correct	616 ms	2648 KB	Output is correct
99	Correct	67 ms	2396 KB	Output is correct
100	Correct	58 ms	2540 KB	Output is correct
101	Correct	53 ms	2392 KB	Output is correct
102	Correct	50 ms	2396 KB	Output is correct
103	Correct	424 ms	2396 KB	Output is correct
104	Correct	250 ms	2600 KB	Output is correct
105	Correct	219 ms	2396 KB	Output is correct
106	Correct	167 ms	2648 KB	Output is correct
107	Correct	1309 ms	2720 KB	Output is correct
108	Correct	609 ms	2648 KB	Output is correct
109	Correct	470 ms	2648 KB	Output is correct
110	Correct	421 ms	2652 KB	Output is correct
111	Correct	50 ms	2392 KB	Output is correct
112	Correct	46 ms	2392 KB	Output is correct
113	Correct	43 ms	2392 KB	Output is correct
114	Correct	107 ms	2532 KB	Output is correct
115	Correct	96 ms	2392 KB	Output is correct
116	Correct	86 ms	2396 KB	Output is correct
117	Correct	83 ms	2392 KB	Output is correct
118	Correct	67 ms	2392 KB	Output is correct
119	Correct	68 ms	2544 KB	Output is correct
120	Correct	68 ms	2396 KB	Output is correct
121	Correct	67 ms	2396 KB	Output is correct
122	Correct	152 ms	2392 KB	Output is correct
123	Correct	142 ms	2640 KB	Output is correct
124	Correct	129 ms	2396 KB	Output is correct
125	Correct	136 ms	2392 KB	Output is correct
126	Correct	121 ms	2596 KB	Output is correct
127	Correct	120 ms	2600 KB	Output is correct
128	Correct	113 ms	2396 KB	Output is correct
129	Correct	111 ms	2392 KB	Output is correct
130	Correct	106 ms	2392 KB	Output is correct
131	Correct	315 ms	2600 KB	Output is correct
132	Correct	240 ms	2396 KB	Output is correct
133	Correct	241 ms	2600 KB	Output is correct
134	Correct	244 ms	2652 KB	Output is correct
135	Correct	196 ms	2644 KB	Output is correct
136	Correct	194 ms	2600 KB	Output is correct
137	Correct	199 ms	2396 KB	Output is correct
138	Correct	225 ms	2600 KB	Output is correct
139	Correct	165 ms	2596 KB	Output is correct
140	Correct	181 ms	2396 KB	Output is correct
141	Correct	168 ms	2856 KB	Output is correct
142	Correct	385 ms	2652 KB	Output is correct
143	Correct	362 ms	2648 KB	Output is correct
144	Correct	348 ms	2896 KB	Output is correct
145	Correct	350 ms	2652 KB	Output is correct
146	Correct	324 ms	2904 KB	Output is correct
147	Correct	317 ms	2648 KB	Output is correct
148	Correct	387 ms	2652 KB	Output is correct
149	Correct	400 ms	2724 KB	Output is correct
150	Correct	374 ms	2724 KB	Output is correct
151	Correct	469 ms	2652 KB	Output is correct
152	Correct	459 ms	2900 KB	Output is correct
153	Correct	585 ms	2652 KB	Output is correct
154	Correct	598 ms	2652 KB	Output is correct
155	Correct	604 ms	2724 KB	Output is correct
156	Correct	591 ms	2720 KB	Output is correct
157	Correct	587 ms	2652 KB	Output is correct
158	Correct	588 ms	2724 KB	Output is correct
159	Correct	502 ms	2720 KB	Output is correct
160	Correct	485 ms	2652 KB	Output is correct
161	Correct	519 ms	2652 KB	Output is correct
162	Correct	445 ms	2652 KB	Output is correct
163	Correct	436 ms	2648 KB	Output is correct
164	Correct	431 ms	2900 KB	Output is correct
165	Correct	434 ms	2720 KB	Output is correct
166	Correct	432 ms	2648 KB	Output is correct
167	Correct	453 ms	2720 KB	Output is correct

Submission #1055663

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 12.0 / 12.0

Subtask #3 23.0 / 23.0

Subtask #4 21.0 / 21.0

Subtask #5 37.0 / 37.0

Subtask #1
7.0 / 7.0

Subtask #2
12.0 / 12.0

Subtask #3
23.0 / 23.0

Subtask #4
21.0 / 21.0

Subtask #5
37.0 / 37.0