답안 #908728

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
908728 2024-01-16T17:45:48 Z amirhoseinfar1385 Amusement Park (CEOI19_amusementpark) C++17
63 / 100
3000 ms 452716 KB
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#include<bits/stdc++.h>
using namespace std;
const int maxn=15,maxm=14348907,mod=998244353;
int pd[maxm],t[(1<<maxn)];
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;
}

pair<int,int>tab2(int a){
	int now=0;
	pair<int,int>ret=make_pair(0,0);
	while(a!=0){
		if(a%3==1){
			ret.first+=(1<<now);
		}else if(a%3==2){
			ret.second+=(1<<now);
		}
		now++;
		a/=3;
	}
	return ret;
}

int back3(int a,int b){
	int ret=t[a]+2*t[b];
	return ret;
}
vector<int>tartib[18];
int adj[maxn],adja[maxn];
int n,m;

void aval(){
	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;
	}
	for(int i=1;i<=n;i++){
		nx*=3;
	}
	for(int i=0;i<nx;i++){
		pair<int,int>fake=tab2(i);
		tartib[__builtin_popcount(fake.first)].push_back(i);
	}
}

void solve(){
	for(int i=0;i<maxn;i++){
		for(auto x:tartib[i]){
			if(pd[x]==0){
				continue;
			}
			pair<int,int>now=tab2(x);
			for(int j=0;j<n;j++){
				if((now.second>>j)&1){
					now.second^=(1<<j);
					pair<int,int>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";
}
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 2652 KB Output is correct
40 Correct 1 ms 2652 KB Output is correct
41 Correct 1 ms 2652 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 2 ms 2648 KB Output is correct
45 Correct 1 ms 2652 KB Output is correct
46 Correct 1 ms 2652 KB Output is correct
47 Correct 1 ms 2652 KB Output is correct
48 Correct 1 ms 2652 KB Output is correct
49 Correct 1 ms 2652 KB Output is correct
50 Correct 1 ms 2652 KB Output is correct
51 Correct 1 ms 2648 KB Output is correct
52 Correct 2 ms 2652 KB Output is correct
53 Correct 2 ms 2652 KB Output is correct
54 Correct 3 ms 2652 KB Output is correct
55 Correct 2 ms 2652 KB Output is correct
56 Correct 2 ms 2652 KB Output is correct
57 Correct 2 ms 2652 KB Output is correct
58 Correct 2 ms 2652 KB Output is correct
59 Correct 2 ms 2652 KB Output is correct
60 Correct 2 ms 2652 KB Output is correct
61 Correct 3 ms 2652 KB Output is correct
62 Correct 2 ms 2648 KB Output is correct
63 Correct 2 ms 2652 KB Output is correct
64 Correct 3 ms 2652 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 2652 KB Output is correct
40 Correct 1 ms 2652 KB Output is correct
41 Correct 1 ms 2652 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 2 ms 2648 KB Output is correct
45 Correct 1 ms 2652 KB Output is correct
46 Correct 1 ms 2652 KB Output is correct
47 Correct 1 ms 2652 KB Output is correct
48 Correct 1 ms 2652 KB Output is correct
49 Correct 1 ms 2652 KB Output is correct
50 Correct 1 ms 2652 KB Output is correct
51 Correct 1 ms 2648 KB Output is correct
52 Correct 2 ms 2652 KB Output is correct
53 Correct 2 ms 2652 KB Output is correct
54 Correct 3 ms 2652 KB Output is correct
55 Correct 2 ms 2652 KB Output is correct
56 Correct 2 ms 2652 KB Output is correct
57 Correct 2 ms 2652 KB Output is correct
58 Correct 2 ms 2652 KB Output is correct
59 Correct 2 ms 2652 KB Output is correct
60 Correct 2 ms 2652 KB Output is correct
61 Correct 3 ms 2652 KB Output is correct
62 Correct 2 ms 2648 KB Output is correct
63 Correct 2 ms 2652 KB Output is correct
64 Correct 3 ms 2652 KB Output is correct
65 Correct 152 ms 28068 KB Output is correct
66 Correct 159 ms 29108 KB Output is correct
67 Correct 155 ms 28384 KB Output is correct
68 Correct 160 ms 27108 KB Output is correct
69 Correct 146 ms 26340 KB Output is correct
70 Correct 152 ms 26772 KB Output is correct
71 Correct 164 ms 27868 KB Output is correct
72 Correct 145 ms 25592 KB Output is correct
73 Correct 148 ms 26340 KB Output is correct
74 Correct 147 ms 27180 KB Output is correct
75 Correct 155 ms 25752 KB Output is correct
76 Correct 147 ms 26992 KB Output is correct
77 Correct 480 ms 79044 KB Output is correct
78 Correct 484 ms 80420 KB Output is correct
79 Correct 494 ms 79572 KB Output is correct
80 Correct 489 ms 78560 KB Output is correct
81 Correct 491 ms 78768 KB Output is correct
82 Correct 481 ms 75808 KB Output is correct
83 Correct 484 ms 72912 KB Output is correct
84 Correct 478 ms 70928 KB Output is correct
85 Correct 453 ms 73760 KB Output is correct
86 Correct 462 ms 72112 KB Output is correct
87 Correct 458 ms 73192 KB Output is correct
88 Correct 458 ms 73240 KB Output is correct
89 Correct 460 ms 75436 KB Output is correct
90 Correct 459 ms 71104 KB Output is correct
91 Correct 456 ms 70992 KB Output is correct
92 Correct 451 ms 70588 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 600 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 1 ms 2652 KB Output is correct
40 Correct 1 ms 2652 KB Output is correct
41 Correct 1 ms 2652 KB Output is correct
42 Correct 1 ms 2652 KB Output is correct
43 Correct 1 ms 2652 KB Output is correct
44 Correct 2 ms 2648 KB Output is correct
45 Correct 1 ms 2652 KB Output is correct
46 Correct 1 ms 2652 KB Output is correct
47 Correct 1 ms 2652 KB Output is correct
48 Correct 1 ms 2652 KB Output is correct
49 Correct 1 ms 2652 KB Output is correct
50 Correct 1 ms 2652 KB Output is correct
51 Correct 1 ms 2648 KB Output is correct
52 Correct 2 ms 2652 KB Output is correct
53 Correct 2 ms 2652 KB Output is correct
54 Correct 3 ms 2652 KB Output is correct
55 Correct 2 ms 2652 KB Output is correct
56 Correct 2 ms 2652 KB Output is correct
57 Correct 2 ms 2652 KB Output is correct
58 Correct 2 ms 2652 KB Output is correct
59 Correct 2 ms 2652 KB Output is correct
60 Correct 2 ms 2652 KB Output is correct
61 Correct 3 ms 2652 KB Output is correct
62 Correct 2 ms 2648 KB Output is correct
63 Correct 2 ms 2652 KB Output is correct
64 Correct 3 ms 2652 KB Output is correct
65 Correct 152 ms 28068 KB Output is correct
66 Correct 159 ms 29108 KB Output is correct
67 Correct 155 ms 28384 KB Output is correct
68 Correct 160 ms 27108 KB Output is correct
69 Correct 146 ms 26340 KB Output is correct
70 Correct 152 ms 26772 KB Output is correct
71 Correct 164 ms 27868 KB Output is correct
72 Correct 145 ms 25592 KB Output is correct
73 Correct 148 ms 26340 KB Output is correct
74 Correct 147 ms 27180 KB Output is correct
75 Correct 155 ms 25752 KB Output is correct
76 Correct 147 ms 26992 KB Output is correct
77 Correct 480 ms 79044 KB Output is correct
78 Correct 484 ms 80420 KB Output is correct
79 Correct 494 ms 79572 KB Output is correct
80 Correct 489 ms 78560 KB Output is correct
81 Correct 491 ms 78768 KB Output is correct
82 Correct 481 ms 75808 KB Output is correct
83 Correct 484 ms 72912 KB Output is correct
84 Correct 478 ms 70928 KB Output is correct
85 Correct 453 ms 73760 KB Output is correct
86 Correct 462 ms 72112 KB Output is correct
87 Correct 458 ms 73192 KB Output is correct
88 Correct 458 ms 73240 KB Output is correct
89 Correct 460 ms 75436 KB Output is correct
90 Correct 459 ms 71104 KB Output is correct
91 Correct 456 ms 70992 KB Output is correct
92 Correct 451 ms 70588 KB Output is correct
93 Execution timed out 3019 ms 452716 KB Time limit exceeded
94 Halted 0 ms 0 KB -