Submission #914308

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
914308	2024-01-21 15:11:02	dsyz	Paths (BOI18_paths)	C++17	100 / 100	1688 ms	174164 KiB

paths

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define MAXN (300005)
ll N,M,K;
vector<ll> v[MAXN];
ll colour[MAXN], dp[MAXN][(1ll<<6) + 1];
bool visited[MAXN][(1ll<<6) + 1];
int main() {
  ios_base::sync_with_stdio(false);cin.tie(0);
  cin>>N>>M>>K;
  for(ll i = 0;i < N;i++){
    cin>>colour[i];
    dp[i][1ll<<colour[i]] = 1;
  }
  for(ll i = 0;i < M;i++){
    ll a,b;
    cin>>a>>b;
    a--, b--;
    v[a].push_back(b);
    v[b].push_back(a);
  }
  for(ll bitmask = 0;bitmask < (1ll<<6);bitmask++){
    for(ll x = 0;x < N;x++){
      for(auto u : v[x]){
        if((bitmask & (1ll<<colour[u])) == 0){
          dp[u][bitmask | (1ll<<colour[u])] += dp[x][bitmask];
        }
      }
    }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 23 / 23
• Subtask 2: 20 / 20
• Subtask 3: 27 / 27
• Subtask 4: 30 / 30