답안 #468042

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
468042 2021-08-26T06:39:43 Z warner1129 Amusement Park (CEOI19_amusementpark) C++17
100 / 100
2776 ms 1668 KB
#include <bits/stdc++.h>

#define ff first
#define ss second

using namespace std;

const int mod = 998244353;
const int inv2 = (mod+1) >> 1;
const int maxn = 18;

int dp[1<<maxn];
bitset<1<<maxn> ind;
pair<int, int> edge[maxn*maxn];

int n, m;

bool check(const int &s) {
	for (int i = 1; i <= m; i++)
		if (((s>>edge[i].ff) & 1) && ((s>>edge[i].ss) & 1))
			return false;
	return true;
}

void solve() {
	cin >> n >> m;
	for (int i = 1; i <= m; i++)
		cin >> edge[i].ff >> edge[i].ss, edge[i].ff--, edge[i].ss--;
	for (int i = 1; i < (1<<n); i++) ind[i] = check(i);
	dp[0] = 1;
	for (int i = 1; i < (1<<n); i++)
		for (int j = i; j; j = (j-1) & i)
			if (ind[j]) dp[i] = (dp[i] + ((__builtin_popcount(j) & 1) ? dp[i^j] : -dp[i^j])) % mod;
	cout << 1ll*((dp[(1<<n)-1] + mod) % mod) * m % mod * inv2 % mod;
}

signed main() {
	ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
	solve();
	return 0;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 316 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 316 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 284 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 0 ms 320 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 320 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 316 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 284 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 0 ms 320 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 320 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 320 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 320 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 316 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 284 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 0 ms 320 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 320 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 320 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 320 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 13 ms 332 KB Output is correct
66 Correct 12 ms 352 KB Output is correct
67 Correct 12 ms 476 KB Output is correct
68 Correct 10 ms 332 KB Output is correct
69 Correct 25 ms 364 KB Output is correct
70 Correct 19 ms 332 KB Output is correct
71 Correct 19 ms 380 KB Output is correct
72 Correct 19 ms 332 KB Output is correct
73 Correct 15 ms 332 KB Output is correct
74 Correct 15 ms 332 KB Output is correct
75 Correct 15 ms 392 KB Output is correct
76 Correct 16 ms 332 KB Output is correct
77 Correct 42 ms 420 KB Output is correct
78 Correct 36 ms 412 KB Output is correct
79 Correct 37 ms 380 KB Output is correct
80 Correct 34 ms 444 KB Output is correct
81 Correct 30 ms 424 KB Output is correct
82 Correct 28 ms 332 KB Output is correct
83 Correct 26 ms 316 KB Output is correct
84 Correct 25 ms 332 KB Output is correct
85 Correct 75 ms 332 KB Output is correct
86 Correct 56 ms 384 KB Output is correct
87 Correct 57 ms 392 KB Output is correct
88 Correct 57 ms 388 KB Output is correct
89 Correct 44 ms 380 KB Output is correct
90 Correct 43 ms 388 KB Output is correct
91 Correct 44 ms 384 KB Output is correct
92 Correct 44 ms 368 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 316 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 1 ms 284 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 0 ms 320 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 320 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 320 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 320 KB Output is correct
35 Correct 1 ms 332 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 1 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 332 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 320 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 332 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 13 ms 332 KB Output is correct
66 Correct 12 ms 352 KB Output is correct
67 Correct 12 ms 476 KB Output is correct
68 Correct 10 ms 332 KB Output is correct
69 Correct 25 ms 364 KB Output is correct
70 Correct 19 ms 332 KB Output is correct
71 Correct 19 ms 380 KB Output is correct
72 Correct 19 ms 332 KB Output is correct
73 Correct 15 ms 332 KB Output is correct
74 Correct 15 ms 332 KB Output is correct
75 Correct 15 ms 392 KB Output is correct
76 Correct 16 ms 332 KB Output is correct
77 Correct 42 ms 420 KB Output is correct
78 Correct 36 ms 412 KB Output is correct
79 Correct 37 ms 380 KB Output is correct
80 Correct 34 ms 444 KB Output is correct
81 Correct 30 ms 424 KB Output is correct
82 Correct 28 ms 332 KB Output is correct
83 Correct 26 ms 316 KB Output is correct
84 Correct 25 ms 332 KB Output is correct
85 Correct 75 ms 332 KB Output is correct
86 Correct 56 ms 384 KB Output is correct
87 Correct 57 ms 392 KB Output is correct
88 Correct 57 ms 388 KB Output is correct
89 Correct 44 ms 380 KB Output is correct
90 Correct 43 ms 388 KB Output is correct
91 Correct 44 ms 384 KB Output is correct
92 Correct 44 ms 368 KB Output is correct
93 Correct 1503 ms 1544 KB Output is correct
94 Correct 1505 ms 1464 KB Output is correct
95 Correct 1499 ms 1324 KB Output is correct
96 Correct 1179 ms 1352 KB Output is correct
97 Correct 1117 ms 1456 KB Output is correct
98 Correct 1235 ms 1404 KB Output is correct
99 Correct 128 ms 708 KB Output is correct
100 Correct 105 ms 544 KB Output is correct
101 Correct 95 ms 548 KB Output is correct
102 Correct 88 ms 488 KB Output is correct
103 Correct 923 ms 884 KB Output is correct
104 Correct 548 ms 948 KB Output is correct
105 Correct 437 ms 824 KB Output is correct
106 Correct 303 ms 836 KB Output is correct
107 Correct 2776 ms 1568 KB Output is correct
108 Correct 1179 ms 1416 KB Output is correct
109 Correct 870 ms 1348 KB Output is correct
110 Correct 717 ms 1388 KB Output is correct
111 Correct 79 ms 452 KB Output is correct
112 Correct 74 ms 532 KB Output is correct
113 Correct 79 ms 532 KB Output is correct
114 Correct 223 ms 512 KB Output is correct
115 Correct 169 ms 516 KB Output is correct
116 Correct 164 ms 452 KB Output is correct
117 Correct 168 ms 492 KB Output is correct
118 Correct 133 ms 580 KB Output is correct
119 Correct 129 ms 536 KB Output is correct
120 Correct 131 ms 560 KB Output is correct
121 Correct 132 ms 580 KB Output is correct
122 Correct 273 ms 1024 KB Output is correct
123 Correct 227 ms 816 KB Output is correct
124 Correct 214 ms 780 KB Output is correct
125 Correct 206 ms 836 KB Output is correct
126 Correct 195 ms 824 KB Output is correct
127 Correct 186 ms 792 KB Output is correct
128 Correct 174 ms 716 KB Output is correct
129 Correct 168 ms 816 KB Output is correct
130 Correct 165 ms 820 KB Output is correct
131 Correct 666 ms 988 KB Output is correct
132 Correct 493 ms 860 KB Output is correct
133 Correct 492 ms 880 KB Output is correct
134 Correct 493 ms 940 KB Output is correct
135 Correct 383 ms 712 KB Output is correct
136 Correct 378 ms 708 KB Output is correct
137 Correct 392 ms 788 KB Output is correct
138 Correct 393 ms 828 KB Output is correct
139 Correct 320 ms 708 KB Output is correct
140 Correct 342 ms 888 KB Output is correct
141 Correct 307 ms 748 KB Output is correct
142 Correct 617 ms 1372 KB Output is correct
143 Correct 573 ms 1348 KB Output is correct
144 Correct 548 ms 1344 KB Output is correct
145 Correct 520 ms 1348 KB Output is correct
146 Correct 497 ms 1348 KB Output is correct
147 Correct 479 ms 1428 KB Output is correct
148 Correct 636 ms 1348 KB Output is correct
149 Correct 617 ms 1440 KB Output is correct
150 Correct 614 ms 1348 KB Output is correct
151 Correct 862 ms 1468 KB Output is correct
152 Correct 842 ms 1352 KB Output is correct
153 Correct 1167 ms 1476 KB Output is correct
154 Correct 1169 ms 1348 KB Output is correct
155 Correct 1202 ms 1432 KB Output is correct
156 Correct 1147 ms 1348 KB Output is correct
157 Correct 1134 ms 1476 KB Output is correct
158 Correct 1133 ms 1536 KB Output is correct
159 Correct 949 ms 1564 KB Output is correct
160 Correct 927 ms 1656 KB Output is correct
161 Correct 911 ms 1668 KB Output is correct
162 Correct 837 ms 1416 KB Output is correct
163 Correct 911 ms 1348 KB Output is correct
164 Correct 898 ms 1348 KB Output is correct
165 Correct 755 ms 1352 KB Output is correct
166 Correct 770 ms 1348 KB Output is correct
167 Correct 767 ms 1476 KB Output is correct