oj.uz

Submission #936095

# Submission time Handle Problem Language Result Execution time Memory
936095 2024-03-01T06:32:37 Z a_l_i_r_e_z_a Amusement Park (CEOI19_amusementpark) C++17
100 / 100
 1413 ms 2928 KB 
// In the name of God
// Hope is last to die

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

#define pb push_back
#define int long long
#define S second
#define F first
#define mp make_pair
#define smax(x, y) (x) = max((x), (y))
#define smin(x, y) (x) = min((x), (y))
#define all(x) (x).begin(), (x).end()

const int maxn = 18;
const int inf = 1e9 + 7, mod = 998244353;
int n, m, adj[maxn], dp[1ll << maxn];
bool is_val[1ll << maxn];

int32_t main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> n >> m;
    for(int i = 0; i < m; i++){
        int u, v; cin >> u >> v;
        u--, v--;
        adj[u] += 1ll << v;
        adj[v] += 1ll << u;
    }
    is_val[0] = 1;
    for(int mask = 1; mask < (1ll << n); mask++){
        int i = __builtin_ctz(mask);
        if(is_val[mask - (1ll << i)] && (adj[i] & mask) == 0) is_val[mask] = 1;
    }
    dp[0] = 1;
    for(int mask = 1; mask < (1ll << n); mask++){
        for(int sm = mask; sm; sm = mask & (sm - 1)){
            if(is_val[sm]){
                if(__builtin_parity(sm)){
                    dp[mask] = (1ll * dp[mask] + dp[mask - sm]) % mod;
                }
                else{
                    dp[mask] = (1ll * dp[mask] - dp[mask - sm] + mod) % mod;
                }
            }
        }
    }
    int ans = (dp[(1ll << n) - 1] * m) % mod;
    cout << (ans * ((mod + 1) / 2)) % mod << '\n';

    return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2648 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2648 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 0 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 0 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 2392 KB Output is correct
2 Correct 0 ms 2648 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 0 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 0 ms 2392 KB Output is correct
26 Correct 0 ms 2392 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 0 ms 2396 KB Output is correct
32 Correct 0 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 0 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2648 KB Output is correct
37 Correct 0 ms 2520 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2392 KB Output is correct
41 Correct 1 ms 2392 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 0 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 2392 KB Output is correct
47 Correct 0 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2648 KB Output is correct
50 Correct 1 ms 2392 KB Output is correct
51 Correct 1 ms 2392 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 2396 KB Output is correct
59 Correct 1 ms 2396 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 2396 KB Output is correct
63 Correct 1 ms 2392 KB Output is correct
64 Correct 1 ms 2392 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2648 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 0 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 0 ms 2392 KB Output is correct
26 Correct 0 ms 2392 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 0 ms 2396 KB Output is correct
32 Correct 0 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 0 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2648 KB Output is correct
37 Correct 0 ms 2520 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2392 KB Output is correct
41 Correct 1 ms 2392 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 0 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 2392 KB Output is correct
47 Correct 0 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2648 KB Output is correct
50 Correct 1 ms 2392 KB Output is correct
51 Correct 1 ms 2392 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 2396 KB Output is correct
59 Correct 1 ms 2396 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 2396 KB Output is correct
63 Correct 1 ms 2392 KB Output is correct
64 Correct 1 ms 2392 KB Output is correct
65 Correct 6 ms 2396 KB Output is correct
66 Correct 6 ms 2524 KB Output is correct
67 Correct 6 ms 2396 KB Output is correct
68 Correct 5 ms 2524 KB Output is correct
69 Correct 12 ms 2524 KB Output is correct
70 Correct 9 ms 2396 KB Output is correct
71 Correct 9 ms 2396 KB Output is correct
72 Correct 10 ms 2396 KB Output is correct
73 Correct 7 ms 2392 KB Output is correct
74 Correct 7 ms 2520 KB Output is correct
75 Correct 7 ms 2396 KB Output is correct
76 Correct 8 ms 2396 KB Output is correct
77 Correct 20 ms 2532 KB Output is correct
78 Correct 18 ms 2648 KB Output is correct
79 Correct 18 ms 2536 KB Output is correct
80 Correct 16 ms 2396 KB Output is correct
81 Correct 15 ms 2536 KB Output is correct
82 Correct 14 ms 2528 KB Output is correct
83 Correct 13 ms 2396 KB Output is correct
84 Correct 13 ms 2396 KB Output is correct
85 Correct 35 ms 2648 KB Output is correct
86 Correct 25 ms 2396 KB Output is correct
87 Correct 27 ms 2396 KB Output is correct
88 Correct 29 ms 2392 KB Output is correct
89 Correct 19 ms 2396 KB Output is correct
90 Correct 20 ms 2396 KB Output is correct
91 Correct 21 ms 2528 KB Output is correct
92 Correct 23 ms 2524 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2648 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 0 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 0 ms 2396 KB Output is correct
12 Correct 0 ms 2396 KB Output is correct
13 Correct 0 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 0 ms 2396 KB Output is correct
16 Correct 0 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 0 ms 2396 KB Output is correct
19 Correct 0 ms 2396 KB Output is correct
20 Correct 0 ms 2396 KB Output is correct
21 Correct 0 ms 2396 KB Output is correct
22 Correct 0 ms 2396 KB Output is correct
23 Correct 0 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 0 ms 2392 KB Output is correct
26 Correct 0 ms 2392 KB Output is correct
27 Correct 0 ms 2396 KB Output is correct
28 Correct 0 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
31 Correct 0 ms 2396 KB Output is correct
32 Correct 0 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 0 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2648 KB Output is correct
37 Correct 0 ms 2520 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2396 KB Output is correct
40 Correct 1 ms 2392 KB Output is correct
41 Correct 1 ms 2392 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 0 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 2392 KB Output is correct
47 Correct 0 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2648 KB Output is correct
50 Correct 1 ms 2392 KB Output is correct
51 Correct 1 ms 2392 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 2396 KB Output is correct
59 Correct 1 ms 2396 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 2396 KB Output is correct
63 Correct 1 ms 2392 KB Output is correct
64 Correct 1 ms 2392 KB Output is correct
65 Correct 6 ms 2396 KB Output is correct
66 Correct 6 ms 2524 KB Output is correct
67 Correct 6 ms 2396 KB Output is correct
68 Correct 5 ms 2524 KB Output is correct
69 Correct 12 ms 2524 KB Output is correct
70 Correct 9 ms 2396 KB Output is correct
71 Correct 9 ms 2396 KB Output is correct
72 Correct 10 ms 2396 KB Output is correct
73 Correct 7 ms 2392 KB Output is correct
74 Correct 7 ms 2520 KB Output is correct
75 Correct 7 ms 2396 KB Output is correct
76 Correct 8 ms 2396 KB Output is correct
77 Correct 20 ms 2532 KB Output is correct
78 Correct 18 ms 2648 KB Output is correct
79 Correct 18 ms 2536 KB Output is correct
80 Correct 16 ms 2396 KB Output is correct
81 Correct 15 ms 2536 KB Output is correct
82 Correct 14 ms 2528 KB Output is correct
83 Correct 13 ms 2396 KB Output is correct
84 Correct 13 ms 2396 KB Output is correct
85 Correct 35 ms 2648 KB Output is correct
86 Correct 25 ms 2396 KB Output is correct
87 Correct 27 ms 2396 KB Output is correct
88 Correct 29 ms 2392 KB Output is correct
89 Correct 19 ms 2396 KB Output is correct
90 Correct 20 ms 2396 KB Output is correct
91 Correct 21 ms 2528 KB Output is correct
92 Correct 23 ms 2524 KB Output is correct
93 Correct 704 ms 2728 KB Output is correct
94 Correct 694 ms 2740 KB Output is correct
95 Correct 798 ms 2928 KB Output is correct
96 Correct 556 ms 2720 KB Output is correct
97 Correct 517 ms 2668 KB Output is correct
98 Correct 572 ms 2740 KB Output is correct
99 Correct 64 ms 2396 KB Output is correct
100 Correct 52 ms 2392 KB Output is correct
101 Correct 50 ms 2516 KB Output is correct
102 Correct 46 ms 2520 KB Output is correct
103 Correct 467 ms 2612 KB Output is correct
104 Correct 249 ms 2580 KB Output is correct
105 Correct 211 ms 2580 KB Output is correct
106 Correct 157 ms 2396 KB Output is correct
107 Correct 1413 ms 2668 KB Output is correct
108 Correct 556 ms 2640 KB Output is correct
109 Correct 438 ms 2876 KB Output is correct
110 Correct 389 ms 2596 KB Output is correct
111 Correct 41 ms 2396 KB Output is correct
112 Correct 39 ms 2396 KB Output is correct
113 Correct 36 ms 2392 KB Output is correct
114 Correct 104 ms 2396 KB Output is correct
115 Correct 73 ms 2396 KB Output is correct
116 Correct 79 ms 2396 KB Output is correct
117 Correct 84 ms 2508 KB Output is correct
118 Correct 56 ms 2396 KB Output is correct
119 Correct 60 ms 2396 KB Output is correct
120 Correct 62 ms 2392 KB Output is correct
121 Correct 65 ms 2396 KB Output is correct
122 Correct 142 ms 2396 KB Output is correct
123 Correct 119 ms 2396 KB Output is correct
124 Correct 110 ms 2396 KB Output is correct
125 Correct 109 ms 2396 KB Output is correct
126 Correct 104 ms 2524 KB Output is correct
127 Correct 99 ms 2512 KB Output is correct
128 Correct 91 ms 2396 KB Output is correct
129 Correct 88 ms 2512 KB Output is correct
130 Correct 87 ms 2512 KB Output is correct
131 Correct 326 ms 2616 KB Output is correct
132 Correct 232 ms 2392 KB Output is correct
133 Correct 240 ms 2556 KB Output is correct
134 Correct 251 ms 2524 KB Output is correct
135 Correct 172 ms 2612 KB Output is correct
136 Correct 182 ms 2640 KB Output is correct
137 Correct 184 ms 2392 KB Output is correct
138 Correct 200 ms 2392 KB Output is correct
139 Correct 139 ms 2392 KB Output is correct
140 Correct 160 ms 2396 KB Output is correct
141 Correct 157 ms 2508 KB Output is correct
142 Correct 334 ms 2672 KB Output is correct
143 Correct 305 ms 2312 KB Output is correct
144 Correct 291 ms 2644 KB Output is correct
145 Correct 277 ms 2528 KB Output is correct
146 Correct 262 ms 2388 KB Output is correct
147 Correct 254 ms 2572 KB Output is correct
148 Correct 334 ms 2388 KB Output is correct
149 Correct 324 ms 2432 KB Output is correct
150 Correct 324 ms 2368 KB Output is correct
151 Correct 386 ms 2552 KB Output is correct
152 Correct 402 ms 2392 KB Output is correct
153 Correct 538 ms 2668 KB Output is correct
154 Correct 588 ms 2680 KB Output is correct
155 Correct 559 ms 2608 KB Output is correct
156 Correct 590 ms 2512 KB Output is correct
157 Correct 573 ms 2384 KB Output is correct
158 Correct 558 ms 2756 KB Output is correct
159 Correct 446 ms 2668 KB Output is correct
160 Correct 433 ms 2380 KB Output is correct
161 Correct 472 ms 2496 KB Output is correct
162 Correct 397 ms 2668 KB Output is correct
163 Correct 385 ms 2484 KB Output is correct
164 Correct 359 ms 2540 KB Output is correct
165 Correct 373 ms 2500 KB Output is correct
166 Correct 385 ms 2388 KB Output is correct
167 Correct 398 ms 2436 KB Output is correct