oj.uz

Submission #908764

# Submission time Handle Problem Language Result Execution time Memory
908764 2024-01-16T19:35:35 Z amirhoseinfar1385 Amusement Park (CEOI19_amusementpark) C++17
100 / 100
 1425 ms 269060 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#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;
}

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[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);
	}
}

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;
			}
			pair<int,int>now=make_pair(xx,y);
			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";
}

Compilation message

amusementpark.cpp: In function 'void aval()':
amusementpark.cpp:53:6: warning: unused variable 'nx' [-Wunused-variable]
   53 |  int nx=1;
      |      ^~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 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 2396 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 2396 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 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 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 2396 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 2396 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 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 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 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2392 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 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 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 2580 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 1 ms 2396 KB Output is correct
44 Correct 1 ms 2392 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 2392 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 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 2 ms 2392 KB Output is correct
56 Correct 1 ms 2392 KB Output is correct
57 Correct 1 ms 2392 KB Output is correct
58 Correct 1 ms 2392 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 2396 KB Output is correct
64 Correct 1 ms 2396 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 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 2396 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 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 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 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2392 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 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 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 2580 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 1 ms 2396 KB Output is correct
44 Correct 1 ms 2392 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 2392 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 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 2 ms 2392 KB Output is correct
56 Correct 1 ms 2392 KB Output is correct
57 Correct 1 ms 2392 KB Output is correct
58 Correct 1 ms 2392 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 2396 KB Output is correct
64 Correct 1 ms 2396 KB Output is correct
65 Correct 13 ms 5976 KB Output is correct
66 Correct 15 ms 6748 KB Output is correct
67 Correct 16 ms 5976 KB Output is correct
68 Correct 14 ms 5860 KB Output is correct
69 Correct 10 ms 5160 KB Output is correct
70 Correct 11 ms 4956 KB Output is correct
71 Correct 10 ms 4700 KB Output is correct
72 Correct 10 ms 4440 KB Output is correct
73 Correct 13 ms 4952 KB Output is correct
74 Correct 11 ms 4696 KB Output is correct
75 Correct 10 ms 4444 KB Output is correct
76 Correct 11 ms 4188 KB Output is correct
77 Correct 42 ms 16208 KB Output is correct
78 Correct 51 ms 14416 KB Output is correct
79 Correct 46 ms 14420 KB Output is correct
80 Correct 41 ms 11860 KB Output is correct
81 Correct 45 ms 12124 KB Output is correct
82 Correct 43 ms 11604 KB Output is correct
83 Correct 36 ms 9044 KB Output is correct
84 Correct 38 ms 8276 KB Output is correct
85 Correct 33 ms 8796 KB Output is correct
86 Correct 29 ms 8752 KB Output is correct
87 Correct 28 ms 8028 KB Output is correct
88 Correct 28 ms 7260 KB Output is correct
89 Correct 30 ms 8540 KB Output is correct
90 Correct 28 ms 8116 KB Output is correct
91 Correct 28 ms 7608 KB Output is correct
92 Correct 27 ms 7196 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 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 2396 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 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 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 2396 KB Output is correct
26 Correct 1 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2392 KB Output is correct
30 Correct 1 ms 2392 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 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 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 2580 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 1 ms 2396 KB Output is correct
44 Correct 1 ms 2392 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 2392 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 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 2 ms 2392 KB Output is correct
56 Correct 1 ms 2392 KB Output is correct
57 Correct 1 ms 2392 KB Output is correct
58 Correct 1 ms 2392 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 2396 KB Output is correct
64 Correct 1 ms 2396 KB Output is correct
65 Correct 13 ms 5976 KB Output is correct
66 Correct 15 ms 6748 KB Output is correct
67 Correct 16 ms 5976 KB Output is correct
68 Correct 14 ms 5860 KB Output is correct
69 Correct 10 ms 5160 KB Output is correct
70 Correct 11 ms 4956 KB Output is correct
71 Correct 10 ms 4700 KB Output is correct
72 Correct 10 ms 4440 KB Output is correct
73 Correct 13 ms 4952 KB Output is correct
74 Correct 11 ms 4696 KB Output is correct
75 Correct 10 ms 4444 KB Output is correct
76 Correct 11 ms 4188 KB Output is correct
77 Correct 42 ms 16208 KB Output is correct
78 Correct 51 ms 14416 KB Output is correct
79 Correct 46 ms 14420 KB Output is correct
80 Correct 41 ms 11860 KB Output is correct
81 Correct 45 ms 12124 KB Output is correct
82 Correct 43 ms 11604 KB Output is correct
83 Correct 36 ms 9044 KB Output is correct
84 Correct 38 ms 8276 KB Output is correct
85 Correct 33 ms 8796 KB Output is correct
86 Correct 29 ms 8752 KB Output is correct
87 Correct 28 ms 8028 KB Output is correct
88 Correct 28 ms 7260 KB Output is correct
89 Correct 30 ms 8540 KB Output is correct
90 Correct 28 ms 8116 KB Output is correct
91 Correct 28 ms 7608 KB Output is correct
92 Correct 27 ms 7196 KB Output is correct
93 Correct 777 ms 70780 KB Output is correct
94 Correct 683 ms 33320 KB Output is correct
95 Correct 633 ms 25648 KB Output is correct
96 Correct 808 ms 70848 KB Output is correct
97 Correct 818 ms 70764 KB Output is correct
98 Correct 816 ms 70708 KB Output is correct
99 Correct 135 ms 35920 KB Output is correct
100 Correct 152 ms 34540 KB Output is correct
101 Correct 180 ms 36984 KB Output is correct
102 Correct 165 ms 35516 KB Output is correct
103 Correct 220 ms 14928 KB Output is correct
104 Correct 199 ms 14932 KB Output is correct
105 Correct 286 ms 44720 KB Output is correct
106 Correct 377 ms 68728 KB Output is correct
107 Correct 679 ms 23888 KB Output is correct
108 Correct 822 ms 72744 KB Output is correct
109 Correct 1088 ms 161804 KB Output is correct
110 Correct 1425 ms 269060 KB Output is correct
111 Correct 181 ms 37308 KB Output is correct
112 Correct 115 ms 21072 KB Output is correct
113 Correct 135 ms 24656 KB Output is correct
114 Correct 106 ms 18628 KB Output is correct
115 Correct 86 ms 18768 KB Output is correct
116 Correct 110 ms 17600 KB Output is correct
117 Correct 81 ms 14928 KB Output is correct
118 Correct 95 ms 18676 KB Output is correct
119 Correct 101 ms 17556 KB Output is correct
120 Correct 80 ms 16464 KB Output is correct
121 Correct 90 ms 15276 KB Output is correct
122 Correct 448 ms 76624 KB Output is correct
123 Correct 488 ms 87652 KB Output is correct
124 Correct 432 ms 68808 KB Output is correct
125 Correct 410 ms 62416 KB Output is correct
126 Correct 396 ms 53444 KB Output is correct
127 Correct 327 ms 37428 KB Output is correct
128 Correct 290 ms 29148 KB Output is correct
129 Correct 267 ms 21972 KB Output is correct
130 Correct 230 ms 14676 KB Output is correct
131 Correct 283 ms 35640 KB Output is correct
132 Correct 279 ms 35668 KB Output is correct
133 Correct 280 ms 33620 KB Output is correct
134 Correct 259 ms 27352 KB Output is correct
135 Correct 277 ms 35508 KB Output is correct
136 Correct 289 ms 33580 KB Output is correct
137 Correct 271 ms 31312 KB Output is correct
138 Correct 248 ms 27728 KB Output is correct
139 Correct 306 ms 35664 KB Output is correct
140 Correct 283 ms 30800 KB Output is correct
141 Correct 290 ms 26556 KB Output is correct
142 Correct 1186 ms 172172 KB Output is correct
143 Correct 1145 ms 145176 KB Output is correct
144 Correct 1030 ms 95684 KB Output is correct
145 Correct 916 ms 76544 KB Output is correct
146 Correct 808 ms 55584 KB Output is correct
147 Correct 679 ms 23752 KB Output is correct
148 Correct 1219 ms 172488 KB Output is correct
149 Correct 1125 ms 123532 KB Output is correct
150 Correct 1353 ms 179300 KB Output is correct
151 Correct 842 ms 55060 KB Output is correct
152 Correct 812 ms 58760 KB Output is correct
153 Correct 798 ms 70912 KB Output is correct
154 Correct 804 ms 70368 KB Output is correct
155 Correct 813 ms 60900 KB Output is correct
156 Correct 790 ms 53572 KB Output is correct
157 Correct 849 ms 66504 KB Output is correct
158 Correct 783 ms 62192 KB Output is correct
159 Correct 809 ms 70572 KB Output is correct
160 Correct 829 ms 62128 KB Output is correct
161 Correct 828 ms 51972 KB Output is correct
162 Correct 828 ms 70160 KB Output is correct
163 Correct 879 ms 66252 KB Output is correct
164 Correct 850 ms 62228 KB Output is correct
165 Correct 814 ms 58060 KB Output is correct
166 Correct 786 ms 53680 KB Output is correct
167 Correct 763 ms 48828 KB Output is correct