oj.uz

Submission #313796

# Submission time Handle Problem Language Result Execution time Memory
313796 2020-10-17T05:53:57 Z jhnah917 Amusement Park (CEOI19_amusementpark) C++14
100 / 100
 2029 ms 3960 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, cnt[1<<18];
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++) cnt[i] = cnt[i^(i&-i)] + 1;
    for(int i=1; i<(1<<n); i++){
        for(int j=i; j; j=(i&(j-1))) if(!chk[j]) {
            if(cnt[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:37:24: warning: operation on 'dp[i]' may be undefined [-Wsequence-point]
   37 |             else dp[i] = dp[i] -= dp[i^j];
      |                  ~~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

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

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 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 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 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 0 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 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 0 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 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 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 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 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 0 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 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 0 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 0 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 0 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 0 ms 384 KB Output is correct
47 Correct 0 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 332 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 384 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 0 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 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 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 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 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 0 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 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 0 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 0 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 0 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 0 ms 384 KB Output is correct
47 Correct 0 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 332 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 384 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 11 ms 512 KB Output is correct
66 Correct 11 ms 512 KB Output is correct
67 Correct 10 ms 512 KB Output is correct
68 Correct 9 ms 512 KB Output is correct
69 Correct 20 ms 512 KB Output is correct
70 Correct 14 ms 512 KB Output is correct
71 Correct 14 ms 512 KB Output is correct
72 Correct 15 ms 512 KB Output is correct
73 Correct 11 ms 512 KB Output is correct
74 Correct 11 ms 512 KB Output is correct
75 Correct 11 ms 512 KB Output is correct
76 Correct 12 ms 512 KB Output is correct
77 Correct 37 ms 768 KB Output is correct
78 Correct 34 ms 768 KB Output is correct
79 Correct 32 ms 768 KB Output is correct
80 Correct 28 ms 768 KB Output is correct
81 Correct 26 ms 768 KB Output is correct
82 Correct 24 ms 768 KB Output is correct
83 Correct 23 ms 768 KB Output is correct
84 Correct 22 ms 768 KB Output is correct
85 Correct 53 ms 768 KB Output is correct
86 Correct 41 ms 768 KB Output is correct
87 Correct 40 ms 768 KB Output is correct
88 Correct 42 ms 768 KB Output is correct
89 Correct 31 ms 804 KB Output is correct
90 Correct 30 ms 768 KB Output is correct
91 Correct 32 ms 768 KB Output is correct
92 Correct 34 ms 768 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 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 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 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 0 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 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 0 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 0 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 0 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 1 ms 384 KB Output is correct
35 Correct 0 ms 384 KB Output is correct
36 Correct 0 ms 384 KB Output is correct
37 Correct 1 ms 384 KB Output is correct
38 Correct 0 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 0 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 0 ms 384 KB Output is correct
47 Correct 0 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 332 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 384 KB Output is correct
63 Correct 1 ms 384 KB Output is correct
64 Correct 1 ms 384 KB Output is correct
65 Correct 11 ms 512 KB Output is correct
66 Correct 11 ms 512 KB Output is correct
67 Correct 10 ms 512 KB Output is correct
68 Correct 9 ms 512 KB Output is correct
69 Correct 20 ms 512 KB Output is correct
70 Correct 14 ms 512 KB Output is correct
71 Correct 14 ms 512 KB Output is correct
72 Correct 15 ms 512 KB Output is correct
73 Correct 11 ms 512 KB Output is correct
74 Correct 11 ms 512 KB Output is correct
75 Correct 11 ms 512 KB Output is correct
76 Correct 12 ms 512 KB Output is correct
77 Correct 37 ms 768 KB Output is correct
78 Correct 34 ms 768 KB Output is correct
79 Correct 32 ms 768 KB Output is correct
80 Correct 28 ms 768 KB Output is correct
81 Correct 26 ms 768 KB Output is correct
82 Correct 24 ms 768 KB Output is correct
83 Correct 23 ms 768 KB Output is correct
84 Correct 22 ms 768 KB Output is correct
85 Correct 53 ms 768 KB Output is correct
86 Correct 41 ms 768 KB Output is correct
87 Correct 40 ms 768 KB Output is correct
88 Correct 42 ms 768 KB Output is correct
89 Correct 31 ms 804 KB Output is correct
90 Correct 30 ms 768 KB Output is correct
91 Correct 32 ms 768 KB Output is correct
92 Correct 34 ms 768 KB Output is correct
93 Correct 1060 ms 3912 KB Output is correct
94 Correct 1072 ms 3784 KB Output is correct
95 Correct 1071 ms 3776 KB Output is correct
96 Correct 845 ms 3704 KB Output is correct
97 Correct 790 ms 3832 KB Output is correct
98 Correct 879 ms 3692 KB Output is correct
99 Correct 117 ms 1236 KB Output is correct
100 Correct 95 ms 1144 KB Output is correct
101 Correct 89 ms 1144 KB Output is correct
102 Correct 76 ms 1148 KB Output is correct
103 Correct 665 ms 1912 KB Output is correct
104 Correct 419 ms 2040 KB Output is correct
105 Correct 337 ms 2056 KB Output is correct
106 Correct 277 ms 2040 KB Output is correct
107 Correct 2029 ms 3448 KB Output is correct
108 Correct 983 ms 3704 KB Output is correct
109 Correct 820 ms 3656 KB Output is correct
110 Correct 660 ms 3704 KB Output is correct
111 Correct 74 ms 1144 KB Output is correct
112 Correct 67 ms 1216 KB Output is correct
113 Correct 70 ms 1224 KB Output is correct
114 Correct 163 ms 1164 KB Output is correct
115 Correct 125 ms 1196 KB Output is correct
116 Correct 118 ms 1144 KB Output is correct
117 Correct 122 ms 1136 KB Output is correct
118 Correct 97 ms 1144 KB Output is correct
119 Correct 104 ms 1144 KB Output is correct
120 Correct 92 ms 1148 KB Output is correct
121 Correct 104 ms 1188 KB Output is correct
122 Correct 253 ms 2044 KB Output is correct
123 Correct 240 ms 2024 KB Output is correct
124 Correct 247 ms 2168 KB Output is correct
125 Correct 219 ms 2048 KB Output is correct
126 Correct 180 ms 2040 KB Output is correct
127 Correct 183 ms 2104 KB Output is correct
128 Correct 169 ms 2040 KB Output is correct
129 Correct 166 ms 1956 KB Output is correct
130 Correct 156 ms 2004 KB Output is correct
131 Correct 495 ms 2040 KB Output is correct
132 Correct 392 ms 2040 KB Output is correct
133 Correct 356 ms 2060 KB Output is correct
134 Correct 388 ms 1912 KB Output is correct
135 Correct 296 ms 2052 KB Output is correct
136 Correct 271 ms 2040 KB Output is correct
137 Correct 276 ms 2064 KB Output is correct
138 Correct 332 ms 2048 KB Output is correct
139 Correct 246 ms 2076 KB Output is correct
140 Correct 265 ms 2040 KB Output is correct
141 Correct 230 ms 2040 KB Output is correct
142 Correct 581 ms 3704 KB Output is correct
143 Correct 539 ms 3704 KB Output is correct
144 Correct 507 ms 3636 KB Output is correct
145 Correct 574 ms 3704 KB Output is correct
146 Correct 463 ms 3704 KB Output is correct
147 Correct 441 ms 3596 KB Output is correct
148 Correct 599 ms 3652 KB Output is correct
149 Correct 558 ms 3704 KB Output is correct
150 Correct 551 ms 3704 KB Output is correct
151 Correct 679 ms 3704 KB Output is correct
152 Correct 676 ms 3708 KB Output is correct
153 Correct 849 ms 3692 KB Output is correct
154 Correct 844 ms 3832 KB Output is correct
155 Correct 865 ms 3832 KB Output is correct
156 Correct 829 ms 3800 KB Output is correct
157 Correct 795 ms 3588 KB Output is correct
158 Correct 791 ms 3712 KB Output is correct
159 Correct 707 ms 3832 KB Output is correct
160 Correct 641 ms 3704 KB Output is correct
161 Correct 678 ms 3784 KB Output is correct
162 Correct 641 ms 3832 KB Output is correct
163 Correct 585 ms 3832 KB Output is correct
164 Correct 559 ms 3832 KB Output is correct
165 Correct 551 ms 3704 KB Output is correct
166 Correct 564 ms 3704 KB Output is correct
167 Correct 591 ms 3960 KB Output is correct