제출 #1287154

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1287154		Joon_Yorigami	은행 (IZhO14_bank)	C++17	52 / 100	1098 ms	53036 KiB

bank

/*
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*/
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#pragma GCC optimize("Ofast","unroll-loops","inline","omit-frame-pointer")
using namespace std;
using namespace __gnu_pbds;
using ll = int;
using pll = pair<ll, ll>;
using vll = vector<ll>;
using mll = map<ll, ll>;
using sll = set<ll>;
using sc = set<char>;
typedef tree<
ll,
null_type,
less<ll>,
rb_tree_tag,
tree_order_statistics_node_update>
cheese;
#define printv(v) {for(auto &elem:v){cout<<elem<<" ";}cout<<endl;}
#define printg(g) {for(auto &row:g){printv(row)};}
#define printm(m) {for(auto &pa:m){cout << pa.first << "," << pa.second << " ";};cout<<endl;}


int main()
{
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);cout.tie(NULL);
  
  //vll segtree,lazy;
  //ll segtree_size;
  //segtree=builder(arr);
  //segtree_size=segtree.size()/2;
  //lazy.assign(segtree_size*2,0);
  //update: query_sum(segtree,lazy,a,b,c,1,segtree_size,1);
  //query: cout << query_sum(segtree,lazy,a,b,-1,1,segtree_size,1) << endl;
  ll n,m,k;
  cin >> n >> m;
  vll arr(n);
  vll barr(m);
  for(int i=0;i<n;i++)
    cin >> arr[i];
  for(int i=0;i<m;i++)
    cin >> barr[i];
  ll limit=1<<m;
  vll solved(limit,0);
  vll left(limit,INT_MAX);
  queue<ll> BFS;
  set<ll>seen({0});
  BFS.push(0);
  left[0]=arr[0];
  while(!BFS.empty())
  {
    ll curr=BFS.front();
    BFS.pop();
    //cout << curr << " , " << left[curr]<< endl;
    for(int i=0;i<m;i++)
    {
      ll _solved=solved[curr];
      ll _left=left[curr];
      if((1<<i)&curr || barr[i]>_left)
        continue;
      _left-=barr[i];
      if(_left==0)
      {
        _solved+=1;
        if(_solved==n)
        {
          cout << "YES\n";
          return 0;
        }
        _left=arr[_solved];
      }
      ll neighbour=curr|(1<<i);
      if(seen.find(neighbour)==seen.end())
      {
        seen.insert(neighbour);
        BFS.push(neighbour);
      }
      if(_solved>solved[neighbour] || _solved==solved[neighbour] && _left<left[neighbour])
      {
        solved[neighbour]=_solved;
        left[neighbour]=_left;
      }
    }
  }
  cout << "NO\n";
}

• Subtask 1: 0 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 0 / 29