제출 #897748

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
897748	2024-01-03 15:58:11	LCJLY	Paths (BOI18_paths)	C++14	100 / 100	269 ms	107580 KiB

paths

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#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << "  " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << "  " << j << " " << #i << "  " << q << " " << #p << endl; 
#define show4(x,y) for(auto it:x) cout << it << " "; cout << #y << endl;
typedef pair<int,int>pii;
typedef pair<pii,pii>pi2;
int n,m,k;
int arr[300005];
vector<int>adj[300005];
int memo[300005][35];
int dp(int index, int mask){
  if(memo[index][mask]!=-1) return memo[index][mask];
  int ans=0;
  if(__builtin_popcount(mask)>1) ans=1;
  
  for(auto it:adj[index]){
    if(mask&(1<<arr[it])) continue;
    int next=mask|(1<<arr[it]);
    ans+=dp(it,next);
  }
  return memo[index][mask]=ans;
}
 
 
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• Subtask 1: 23 / 23
• Subtask 2: 20 / 20
• Subtask 3: 27 / 27
• Subtask 4: 30 / 30