oj.uz

답안 #169150

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
169150 2019-12-18T17:00:23 Z Nucleist Exhibition (JOI19_ho_t2) C++14
0 / 100
 2 ms 380 KB 
#include <bits/stdc++.h> 
using namespace std; 
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ll long long
#define INF 1000000000
#define MOD 1000000007
#define pb push_back
#define ve vector<ll>
#define dos pair<ll,ll>
#define vedos vector<dos>
#define rand mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
struct greateri
{
    template<class T>
    bool operator()(T const &a, T const &b) const { return a > b; }
};
ll n,m;
vedos hedi;
ve frames;
map<pair<ll,pair<ll,ll>>,ll>dp;
ll solve(ll pic,ll frame,ll last)
{
  if(pic==n || frame==m)return 0;
  if(dp.find({pic,{frame,last}})!=dp.end())return dp[{pic,{frame,last}}]; 
  ll ans=0;
  if((hedi[pic].second>=hedi[last].second||last==-1) && hedi[pic].first<=frames[frame])
  {
    ans=max(ans,1+solve(pic+1,frame+1,pic));
  }
  ans=max(ans,solve(pic+1,frame,last));
  ans=max(ans,solve(pic,frame+1,last));
  return dp[{pic,{frame,last}}]=ans;
}
int main()
{
  //flash;
  cin>>n>>m;
  for (ll i = 0; i < n; ++i)
  {
    ll x,y;
    cin>>x>>y;
    hedi.pb({x,y});
  }
  for (ll i = 0; i < m; ++i)
  {
    ll yo;
    cin>>yo;
    frames.pb(yo);
  }
  sort(hedi.begin(),hedi.end());
  sort(frames.begin(),frames.end());
  cout<<solve(0,0,-1);
  return 0;
}
//code the AC sol !
// BS/queue/map

Compilation message

joi2019_ho_t2.cpp:4:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("O3")
 
joi2019_ho_t2.cpp:5:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("unroll-loops")

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Incorrect 2 ms 256 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Incorrect 2 ms 256 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Incorrect 2 ms 256 KB Output isn't correct
6 Halted 0 ms 0 KB -