oj.uz

Submission #313793

# Submission time Handle Problem Language Result Execution time Memory
313793 2020-10-17T05:52:09 Z jhnah917 Amusement Park (CEOI19_amusementpark) C++14
100 / 100
 2557 ms 2844 KB 
#include <bits/stdc++.h>
#define x first
#define y second
#define all(v) v.begin(), v.end()
#define compress(v) sort(all(v)), v.erase(unique(all(v)), v.end())
using namespace std;

typedef long long ll;
typedef pair<int, int> p;
const int mod = 998244353;

int n, m;
bool g[22][22], chk[1<<18];
ll dp[1<<18];

int main(){
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    cin >> n >> m;
    for(int i=0; i<m; i++){
        int s, e; cin >> s >> e; s--; e--;
        g[s][e] = g[e][s] = 1;
    }
    for(int i=0; i<(1<<n); i++){
        for(int j=0; j<n; j++) if(i & (1 << j)) {
            for(int k=j+1; k<n; k++) if(i & (1 << k)) {
                if(g[j][k]){ chk[i] = 1; break; }
            }
            if(chk[i]) break;
        }
    }
    
    dp[0] = 1;
    for(int i=1; i<(1<<n); i++){
        for(int j=i; j; j=(i&(j-1))) if(!chk[j]) {
            if(__builtin_popcount(j) & 1) dp[i] += dp[i^j];
            else dp[i] = dp[i] -= dp[i^j];
            if(dp[i] < 0) dp[i] += mod;
            if(dp[i] >= mod) dp[i] %= mod;
        }
    }
    cout << dp[(1<<n)-1] * m % mod * (mod/2+1) % mod;
}

Compilation message

amusementpark.cpp: In function 'int main()':
amusementpark.cpp:36:24: warning: operation on 'dp[i]' may be undefined [-Wsequence-point]
   36 |             else dp[i] = dp[i] -= dp[i^j];
      |                  ~~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 0 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 1 ms 384 KB Output is correct
55 Correct 1 ms 384 KB Output is correct
56 Correct 1 ms 384 KB Output is correct
57 Correct 1 ms 384 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 1 ms 384 KB Output is correct
62 Correct 1 ms 512 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 0 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 1 ms 384 KB Output is correct
55 Correct 1 ms 384 KB Output is correct
56 Correct 1 ms 384 KB Output is correct
57 Correct 1 ms 384 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 1 ms 384 KB Output is correct
62 Correct 1 ms 512 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 13 ms 512 KB Output is correct
66 Correct 13 ms 512 KB Output is correct
67 Correct 11 ms 512 KB Output is correct
68 Correct 10 ms 512 KB Output is correct
69 Correct 24 ms 512 KB Output is correct
70 Correct 20 ms 512 KB Output is correct
71 Correct 19 ms 640 KB Output is correct
72 Correct 21 ms 512 KB Output is correct
73 Correct 15 ms 512 KB Output is correct
74 Correct 14 ms 512 KB Output is correct
75 Correct 14 ms 640 KB Output is correct
76 Correct 14 ms 512 KB Output is correct
77 Correct 45 ms 632 KB Output is correct
78 Correct 37 ms 632 KB Output is correct
79 Correct 34 ms 664 KB Output is correct
80 Correct 31 ms 640 KB Output is correct
81 Correct 28 ms 640 KB Output is correct
82 Correct 26 ms 640 KB Output is correct
83 Correct 24 ms 640 KB Output is correct
84 Correct 24 ms 640 KB Output is correct
85 Correct 69 ms 616 KB Output is correct
86 Correct 51 ms 632 KB Output is correct
87 Correct 53 ms 632 KB Output is correct
88 Correct 56 ms 632 KB Output is correct
89 Correct 43 ms 640 KB Output is correct
90 Correct 42 ms 644 KB Output is correct
91 Correct 39 ms 632 KB Output is correct
92 Correct 40 ms 632 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 0 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 0 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 1 ms 384 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 0 ms 384 KB Output is correct
38 Correct 1 ms 384 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 384 KB Output is correct
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 1 ms 384 KB Output is correct
55 Correct 1 ms 384 KB Output is correct
56 Correct 1 ms 384 KB Output is correct
57 Correct 1 ms 384 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 1 ms 384 KB Output is correct
61 Correct 1 ms 384 KB Output is correct
62 Correct 1 ms 512 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 13 ms 512 KB Output is correct
66 Correct 13 ms 512 KB Output is correct
67 Correct 11 ms 512 KB Output is correct
68 Correct 10 ms 512 KB Output is correct
69 Correct 24 ms 512 KB Output is correct
70 Correct 20 ms 512 KB Output is correct
71 Correct 19 ms 640 KB Output is correct
72 Correct 21 ms 512 KB Output is correct
73 Correct 15 ms 512 KB Output is correct
74 Correct 14 ms 512 KB Output is correct
75 Correct 14 ms 640 KB Output is correct
76 Correct 14 ms 512 KB Output is correct
77 Correct 45 ms 632 KB Output is correct
78 Correct 37 ms 632 KB Output is correct
79 Correct 34 ms 664 KB Output is correct
80 Correct 31 ms 640 KB Output is correct
81 Correct 28 ms 640 KB Output is correct
82 Correct 26 ms 640 KB Output is correct
83 Correct 24 ms 640 KB Output is correct
84 Correct 24 ms 640 KB Output is correct
85 Correct 69 ms 616 KB Output is correct
86 Correct 51 ms 632 KB Output is correct
87 Correct 53 ms 632 KB Output is correct
88 Correct 56 ms 632 KB Output is correct
89 Correct 43 ms 640 KB Output is correct
90 Correct 42 ms 644 KB Output is correct
91 Correct 39 ms 632 KB Output is correct
92 Correct 40 ms 632 KB Output is correct
93 Correct 1435 ms 2680 KB Output is correct
94 Correct 1463 ms 2700 KB Output is correct
95 Correct 1464 ms 2824 KB Output is correct
96 Correct 1132 ms 2844 KB Output is correct
97 Correct 1050 ms 2680 KB Output is correct
98 Correct 1205 ms 2700 KB Output is correct
99 Correct 136 ms 1016 KB Output is correct
100 Correct 123 ms 1016 KB Output is correct
101 Correct 99 ms 888 KB Output is correct
102 Correct 86 ms 888 KB Output is correct
103 Correct 900 ms 1400 KB Output is correct
104 Correct 488 ms 1528 KB Output is correct
105 Correct 407 ms 1656 KB Output is correct
106 Correct 318 ms 1656 KB Output is correct
107 Correct 2557 ms 2612 KB Output is correct
108 Correct 1176 ms 2792 KB Output is correct
109 Correct 891 ms 2624 KB Output is correct
110 Correct 696 ms 2656 KB Output is correct
111 Correct 78 ms 892 KB Output is correct
112 Correct 70 ms 968 KB Output is correct
113 Correct 66 ms 888 KB Output is correct
114 Correct 204 ms 1016 KB Output is correct
115 Correct 154 ms 952 KB Output is correct
116 Correct 150 ms 888 KB Output is correct
117 Correct 144 ms 888 KB Output is correct
118 Correct 121 ms 1016 KB Output is correct
119 Correct 118 ms 1016 KB Output is correct
120 Correct 114 ms 888 KB Output is correct
121 Correct 110 ms 864 KB Output is correct
122 Correct 262 ms 1528 KB Output is correct
123 Correct 219 ms 1528 KB Output is correct
124 Correct 202 ms 1532 KB Output is correct
125 Correct 197 ms 1656 KB Output is correct
126 Correct 191 ms 1452 KB Output is correct
127 Correct 189 ms 1668 KB Output is correct
128 Correct 162 ms 1536 KB Output is correct
129 Correct 157 ms 1528 KB Output is correct
130 Correct 154 ms 1528 KB Output is correct
131 Correct 750 ms 1432 KB Output is correct
132 Correct 478 ms 1656 KB Output is correct
133 Correct 473 ms 1564 KB Output is correct
134 Correct 715 ms 1424 KB Output is correct
135 Correct 417 ms 1512 KB Output is correct
136 Correct 346 ms 1528 KB Output is correct
137 Correct 348 ms 1656 KB Output is correct
138 Correct 330 ms 1532 KB Output is correct
139 Correct 294 ms 1528 KB Output is correct
140 Correct 323 ms 1528 KB Output is correct
141 Correct 303 ms 1528 KB Output is correct
142 Correct 594 ms 2680 KB Output is correct
143 Correct 549 ms 2680 KB Output is correct
144 Correct 516 ms 2556 KB Output is correct
145 Correct 562 ms 2680 KB Output is correct
146 Correct 468 ms 2676 KB Output is correct
147 Correct 453 ms 2680 KB Output is correct
148 Correct 669 ms 2784 KB Output is correct
149 Correct 614 ms 2688 KB Output is correct
150 Correct 583 ms 2656 KB Output is correct
151 Correct 804 ms 2680 KB Output is correct
152 Correct 787 ms 2716 KB Output is correct
153 Correct 1110 ms 2568 KB Output is correct
154 Correct 1122 ms 2628 KB Output is correct
155 Correct 1080 ms 2652 KB Output is correct
156 Correct 1016 ms 2664 KB Output is correct
157 Correct 1043 ms 2808 KB Output is correct
158 Correct 1012 ms 2692 KB Output is correct
159 Correct 901 ms 2752 KB Output is correct
160 Correct 811 ms 2632 KB Output is correct
161 Correct 787 ms 2692 KB Output is correct
162 Correct 771 ms 2844 KB Output is correct
163 Correct 708 ms 2664 KB Output is correct
164 Correct 679 ms 2680 KB Output is correct
165 Correct 677 ms 2808 KB Output is correct
166 Correct 679 ms 2680 KB Output is correct
167 Correct 656 ms 2680 KB Output is correct