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Submission #518388

# Submission time Handle Problem Language Result Execution time Memory
518388 2022-01-23T15:56:54 Z Ierus Paths (BOI18_paths) C++17
100 / 100
 556 ms 317460 KB 
#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
#define F first
#define S second
#define sz(x) (int)x.size()
#define pb push_back
#define eb emplace_back
#define rall(x) (x).rbegin(),(x).rend()
#define NFS ios_base::sync_with_stdio(0) , cin.tie(0) , cout.tie(0) ;
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
typedef long long ll;
const int E = 1e6+777;
const long long inf = 1e18+777;
const int N = 3e5+324;
const int MOD = 1e9+7;
long long res;
int n, m, k, c[N];
vector<int> g[N];
long long cnt[6][N][(1<<5)];
void Count(int v, int x){
	for(auto to : g[v]){
		if(c[to] == c[v]) continue;
		for(int mask = 0; mask < (1 << k); ++mask){
			if(((mask >> c[v]) & 1)) continue;
			cnt[x][v][mask|(1<<c[v])] += cnt[x-1][to][mask];
		};
	};
}
int main(){
	ios_base::sync_with_stdio(0) , cin.tie(0) , cout.tie(0) ;
	cin >> n >> m >> k;
	for(int i = 1; i <= n; ++i){
		cin >> c[i]; --c[i];
		cnt[1][i][(1<<c[i])] = 1;
	}
	for(int i = 1; i <= m; ++i){
		int x, y;
		cin >> x >> y;
		g[x].pb(y);
		g[y].pb(x);
	}
	for(int x = 2; x <= k; ++x){
		for(int i = 1; i <= n; ++i){
			Count(i, x);
		}
	}
	long long sum = 0;
	for(int kk = 2; kk <= k; ++kk){
		for(int i = 1; i <= n; ++i){
			for(int j = 0;  j < (1 << k); ++j){
				sum += cnt[kk][i][j];
			}
		}
	}
	cout << sum;
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7500 KB Output is correct
3 Correct 6 ms 7372 KB Output is correct
4 Correct 4 ms 7372 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7500 KB Output is correct
7 Correct 4 ms 7372 KB Output is correct
8 Correct 4 ms 7500 KB Output is correct
9 Correct 4 ms 7392 KB Output is correct
10 Correct 4 ms 7372 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 14772 KB Output is correct
2 Correct 55 ms 11484 KB Output is correct
3 Correct 376 ms 242380 KB Output is correct
4 Correct 91 ms 26960 KB Output is correct
5 Correct 79 ms 19384 KB Output is correct
6 Correct 255 ms 165528 KB Output is correct
7 Correct 342 ms 242360 KB Output is correct
8 Correct 346 ms 242944 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7500 KB Output is correct
3 Correct 6 ms 7372 KB Output is correct
4 Correct 4 ms 7372 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7500 KB Output is correct
7 Correct 4 ms 7372 KB Output is correct
8 Correct 4 ms 7500 KB Output is correct
9 Correct 4 ms 7392 KB Output is correct
10 Correct 4 ms 7372 KB Output is correct
11 Correct 89 ms 14772 KB Output is correct
12 Correct 55 ms 11484 KB Output is correct
13 Correct 376 ms 242380 KB Output is correct
14 Correct 91 ms 26960 KB Output is correct
15 Correct 79 ms 19384 KB Output is correct
16 Correct 255 ms 165528 KB Output is correct
17 Correct 342 ms 242360 KB Output is correct
18 Correct 346 ms 242944 KB Output is correct
19 Correct 65 ms 14820 KB Output is correct
20 Correct 54 ms 11576 KB Output is correct
21 Correct 346 ms 242320 KB Output is correct
22 Correct 135 ms 26884 KB Output is correct
23 Correct 85 ms 19396 KB Output is correct
24 Correct 238 ms 165532 KB Output is correct
25 Correct 327 ms 242252 KB Output is correct
26 Correct 372 ms 242996 KB Output is correct
27 Correct 88 ms 11720 KB Output is correct
28 Correct 100 ms 19780 KB Output is correct
29 Correct 501 ms 317408 KB Output is correct
30 Correct 330 ms 164024 KB Output is correct
31 Correct 357 ms 164152 KB Output is correct
32 Correct 556 ms 317460 KB Output is correct
33 Correct 4 ms 7372 KB Output is correct
34 Correct 6 ms 7500 KB Output is correct
35 Correct 4 ms 7372 KB Output is correct
36 Correct 4 ms 7372 KB Output is correct
37 Correct 4 ms 7336 KB Output is correct
38 Correct 5 ms 7500 KB Output is correct
39 Correct 6 ms 7472 KB Output is correct
40 Correct 4 ms 7500 KB Output is correct
41 Correct 4 ms 7416 KB Output is correct
42 Correct 4 ms 7372 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 34 ms 9084 KB Output is correct
3 Correct 24 ms 8848 KB Output is correct
4 Correct 114 ms 85676 KB Output is correct
5 Correct 82 ms 86376 KB Output is correct
6 Correct 235 ms 135812 KB Output is correct
7 Correct 27 ms 8932 KB Output is correct
8 Correct 152 ms 110772 KB Output is correct
9 Correct 118 ms 111456 KB Output is correct
10 Correct 160 ms 111292 KB Output is correct
11 Correct 131 ms 72060 KB Output is correct
12 Correct 144 ms 104376 KB Output is correct
13 Correct 141 ms 71996 KB Output is correct
14 Correct 243 ms 135748 KB Output is correct
15 Correct 228 ms 136012 KB Output is correct
16 Correct 4 ms 7372 KB Output is correct
17 Correct 4 ms 7500 KB Output is correct
18 Correct 4 ms 7372 KB Output is correct
19 Correct 4 ms 7372 KB Output is correct
20 Correct 5 ms 7372 KB Output is correct
21 Correct 4 ms 7500 KB Output is correct
22 Correct 4 ms 7372 KB Output is correct
23 Correct 5 ms 7500 KB Output is correct
24 Correct 4 ms 7416 KB Output is correct
25 Correct 4 ms 7372 KB Output is correct