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Submission #932078

# Submission time Handle Problem Language Result Execution time Memory
932078 2024-02-22T23:53:15 Z amirhoseinfar1385 Amusement Park (CEOI19_amusementpark) C++17
100 / 100
 1187 ms 269332 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn=18,maxm=387420489,mod=998244353;
int pd[maxm],t[(1<<maxn)],mar;
long long mypow(long long m,long long y){
    if(y==0){
        return 1;
    }
    long long p=mypow(m,(y>>1));
    p*=p;
    p%=mod;
    if(y&1){
        p*=m;
        p%=mod;
    }
    return p;
}
 
int ww(int a){
	if(a>=mod){
		a-=mod;
	}
	return a;
}
 
int back3(int a,int b){
	int ret=t[a]+2*t[b];
	return ret;
}
vector<int>tartib[maxn+2];
int adj[maxn],adja[maxn];
int n,m;
 
void aval(){
	mar=(1<<n)-1;
	int nx=1;
	for(int i=0;i<(1<<n);i++){
		int now=1,ret=0;
		for(int j=0;j<n;j++){
			if((i>>j)&1){
				ret+=now;
			}
			now*=3;
		}
		t[i]=ret;
		tartib[__builtin_popcount(i)].push_back(i);
	}
}
pair<int,int> fake,now;
void solve(){
	for(int i=0;i<maxn+2;i++){
		for(auto xx:tartib[i]){
			for(int y=(mar^xx);y>0;y=(y-1)&(mar^xx)){
			int x=back3(xx,y);
			if(pd[x]==0){
				continue;
			}
			now=make_pair(xx,y);
			for(int j=0;j<n;j++){
				if((now.second>>j)&1){
					now.second^=(1<<j);
					fake=now;
					fake.first|=(1<<j);
					fake.second|=(adj[j]^(adj[j]&now.first));
					int tof=back3(fake.first,fake.second);
					pd[tof]+=pd[x];
					pd[tof]=ww(pd[tof]);
				}
			}
			}
		}
	}
}
 
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m;
	aval();	
	for(int i=0;i<m;i++){
		int u,v;
		cin>>u>>v;
		u--;
		v--;
		adj[u]|=(1<<v);
		adj[v]|=(1<<u);
		adja[u]|=(1<<v);
	}
	pd[back3(0,(1<<n)-1)]=1;
	solve();
	int res=back3((1<<n)-1,0);
	pd[res]=1ll*pd[res]*m%mod;
	pd[res]=1ll*pd[res]*mypow(2,mod-2)%mod;
	cout<<pd[res]<<"\n";
}

Compilation message

amusementpark.cpp: In function 'void aval()':
amusementpark.cpp:36:6: warning: unused variable 'nx' [-Wunused-variable]
   36 |  int nx=1;
      |      ^~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 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 2396 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 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 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 2396 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 2392 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 2464 KB Output is correct
15 Correct 1 ms 2520 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 2652 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2520 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 0 ms 2400 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 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 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 2396 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 2392 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 2464 KB Output is correct
15 Correct 1 ms 2520 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 2652 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2520 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 0 ms 2400 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 2392 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 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 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 2392 KB Output is correct
35 Correct 1 ms 2400 KB Output is correct
36 Correct 0 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 2400 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2400 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 2400 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 2520 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 2392 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2392 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 2516 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 2536 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 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 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 2396 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 2392 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 2464 KB Output is correct
15 Correct 1 ms 2520 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 2652 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2520 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 0 ms 2400 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 2392 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 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 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 2392 KB Output is correct
35 Correct 1 ms 2400 KB Output is correct
36 Correct 0 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 2400 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2400 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 2400 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 2520 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 2392 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2392 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 2516 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 2536 KB Output is correct
65 Correct 13 ms 6048 KB Output is correct
66 Correct 16 ms 6744 KB Output is correct
67 Correct 15 ms 5856 KB Output is correct
68 Correct 15 ms 5724 KB Output is correct
69 Correct 10 ms 4956 KB Output is correct
70 Correct 10 ms 4956 KB Output is correct
71 Correct 10 ms 4700 KB Output is correct
72 Correct 10 ms 4444 KB Output is correct
73 Correct 10 ms 4956 KB Output is correct
74 Correct 10 ms 4700 KB Output is correct
75 Correct 10 ms 4444 KB Output is correct
76 Correct 10 ms 4296 KB Output is correct
77 Correct 44 ms 16012 KB Output is correct
78 Correct 41 ms 14416 KB Output is correct
79 Correct 46 ms 14604 KB Output is correct
80 Correct 39 ms 11980 KB Output is correct
81 Correct 41 ms 12116 KB Output is correct
82 Correct 40 ms 11600 KB Output is correct
83 Correct 38 ms 9044 KB Output is correct
84 Correct 38 ms 8272 KB Output is correct
85 Correct 25 ms 8532 KB Output is correct
86 Correct 27 ms 8540 KB Output is correct
87 Correct 28 ms 8240 KB Output is correct
88 Correct 27 ms 7104 KB Output is correct
89 Correct 26 ms 8532 KB Output is correct
90 Correct 28 ms 8028 KB Output is correct
91 Correct 26 ms 7512 KB Output is correct
92 Correct 33 ms 7104 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 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 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 2396 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 2392 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 2464 KB Output is correct
15 Correct 1 ms 2520 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 2652 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2520 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 0 ms 2400 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 2392 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2392 KB Output is correct
28 Correct 1 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 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 2392 KB Output is correct
35 Correct 1 ms 2400 KB Output is correct
36 Correct 0 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 2400 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2400 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 2400 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 2520 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 2392 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2392 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 2516 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 2536 KB Output is correct
65 Correct 13 ms 6048 KB Output is correct
66 Correct 16 ms 6744 KB Output is correct
67 Correct 15 ms 5856 KB Output is correct
68 Correct 15 ms 5724 KB Output is correct
69 Correct 10 ms 4956 KB Output is correct
70 Correct 10 ms 4956 KB Output is correct
71 Correct 10 ms 4700 KB Output is correct
72 Correct 10 ms 4444 KB Output is correct
73 Correct 10 ms 4956 KB Output is correct
74 Correct 10 ms 4700 KB Output is correct
75 Correct 10 ms 4444 KB Output is correct
76 Correct 10 ms 4296 KB Output is correct
77 Correct 44 ms 16012 KB Output is correct
78 Correct 41 ms 14416 KB Output is correct
79 Correct 46 ms 14604 KB Output is correct
80 Correct 39 ms 11980 KB Output is correct
81 Correct 41 ms 12116 KB Output is correct
82 Correct 40 ms 11600 KB Output is correct
83 Correct 38 ms 9044 KB Output is correct
84 Correct 38 ms 8272 KB Output is correct
85 Correct 25 ms 8532 KB Output is correct
86 Correct 27 ms 8540 KB Output is correct
87 Correct 28 ms 8240 KB Output is correct
88 Correct 27 ms 7104 KB Output is correct
89 Correct 26 ms 8532 KB Output is correct
90 Correct 28 ms 8028 KB Output is correct
91 Correct 26 ms 7512 KB Output is correct
92 Correct 33 ms 7104 KB Output is correct
93 Correct 747 ms 70684 KB Output is correct
94 Correct 671 ms 33464 KB Output is correct
95 Correct 657 ms 25856 KB Output is correct
96 Correct 742 ms 70748 KB Output is correct
97 Correct 752 ms 70736 KB Output is correct
98 Correct 747 ms 70856 KB Output is correct
99 Correct 106 ms 35924 KB Output is correct
100 Correct 122 ms 34168 KB Output is correct
101 Correct 140 ms 36948 KB Output is correct
102 Correct 155 ms 35880 KB Output is correct
103 Correct 209 ms 14784 KB Output is correct
104 Correct 209 ms 14932 KB Output is correct
105 Correct 251 ms 44628 KB Output is correct
106 Correct 331 ms 68452 KB Output is correct
107 Correct 651 ms 23876 KB Output is correct
108 Correct 764 ms 72852 KB Output is correct
109 Correct 933 ms 161752 KB Output is correct
110 Correct 1187 ms 269332 KB Output is correct
111 Correct 145 ms 37516 KB Output is correct
112 Correct 115 ms 21072 KB Output is correct
113 Correct 119 ms 24656 KB Output is correct
114 Correct 76 ms 18632 KB Output is correct
115 Correct 77 ms 18768 KB Output is correct
116 Correct 82 ms 17720 KB Output is correct
117 Correct 86 ms 14932 KB Output is correct
118 Correct 84 ms 18768 KB Output is correct
119 Correct 85 ms 17816 KB Output is correct
120 Correct 76 ms 16520 KB Output is correct
121 Correct 76 ms 15088 KB Output is correct
122 Correct 353 ms 76732 KB Output is correct
123 Correct 424 ms 87376 KB Output is correct
124 Correct 380 ms 68432 KB Output is correct
125 Correct 367 ms 62348 KB Output is correct
126 Correct 334 ms 53816 KB Output is correct
127 Correct 296 ms 37204 KB Output is correct
128 Correct 253 ms 29120 KB Output is correct
129 Correct 242 ms 21668 KB Output is correct
130 Correct 212 ms 14528 KB Output is correct
131 Correct 252 ms 35740 KB Output is correct
132 Correct 252 ms 35664 KB Output is correct
133 Correct 239 ms 33616 KB Output is correct
134 Correct 248 ms 27320 KB Output is correct
135 Correct 248 ms 35668 KB Output is correct
136 Correct 242 ms 33420 KB Output is correct
137 Correct 246 ms 31312 KB Output is correct
138 Correct 248 ms 27724 KB Output is correct
139 Correct 249 ms 35924 KB Output is correct
140 Correct 245 ms 30712 KB Output is correct
141 Correct 246 ms 26784 KB Output is correct
142 Correct 1053 ms 172256 KB Output is correct
143 Correct 1052 ms 144988 KB Output is correct
144 Correct 922 ms 95680 KB Output is correct
145 Correct 855 ms 76484 KB Output is correct
146 Correct 757 ms 55752 KB Output is correct
147 Correct 699 ms 23892 KB Output is correct
148 Correct 1078 ms 172232 KB Output is correct
149 Correct 1006 ms 123340 KB Output is correct
150 Correct 1098 ms 179256 KB Output is correct
151 Correct 706 ms 54968 KB Output is correct
152 Correct 787 ms 58944 KB Output is correct
153 Correct 747 ms 70960 KB Output is correct
154 Correct 762 ms 70472 KB Output is correct
155 Correct 800 ms 60904 KB Output is correct
156 Correct 745 ms 53704 KB Output is correct
157 Correct 747 ms 66560 KB Output is correct
158 Correct 744 ms 62136 KB Output is correct
159 Correct 758 ms 70424 KB Output is correct
160 Correct 786 ms 62300 KB Output is correct
161 Correct 736 ms 51784 KB Output is correct
162 Correct 749 ms 70244 KB Output is correct
163 Correct 761 ms 66180 KB Output is correct
164 Correct 731 ms 62136 KB Output is correct
165 Correct 779 ms 57908 KB Output is correct
166 Correct 735 ms 53600 KB Output is correct
167 Correct 737 ms 48664 KB Output is correct