Submission #473385

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
473385	2021-09-15 12:58:51	fadi57	Paths (BOI18_paths)	C++14	100 / 100	675 ms	104516 KiB

paths

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#include<bits/stdc++.h>
using namespace std;
const int mx=3e5+10;
typedef long long ll;
int mod=1e9+7;
const int MXm=22;
#define F first
#define S second
const int inf=1e9+10;
 ll dp[mx][(1<<5)+5];
 int c[mx];
 vector<int>adj[mx];
 int n,m,k;
  ll solve(int node,int mask){
  ll &ret=dp[node][mask];
if(ret!=-1){
    return ret;
  }
 ret=1;
   for(auto it:adj[node]){
    if(!((1<<c[it])&mask)){
        ret+=solve(it,mask|(1<<c[it]));
    }
   }
 return ret;
 
 
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• Subtask 1: 23 / 23
• Subtask 2: 20 / 20
• Subtask 3: 27 / 27
• Subtask 4: 30 / 30