Submission #254136

#	Time	Username	Problem	Language	Result	Execution time	Memory
254136		Nucleist	Tenis (COI19_tenis)	C++14	39 / 100	520 ms	9336 KiB

tenis

//Self-control leads to consistency.
#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())
#define EPS 0.000001
struct greateri
{
    template<class T>
    bool operator()(T const &a, T const &b) const { return a > b; }
};
void setIO(string s) {
  ios_base::sync_with_stdio(0); cin.tie(0); 
  freopen((s+".in").c_str(),"r",stdin);
  freopen((s+".out").c_str(),"w",stdout);
}
ll seg[400011];
ll ari[400011];
pair<int,dos> zi[400011];
void upd(ll p,ll l,ll r,ll k,ll val){
  if(l==r && l==k){
    seg[p]=max(seg[p],val);
    return;
  }
  ll med=(l+r)>>1;
  if(k<=med){
    upd(p*2,l,med,k,val);
  }
  else upd(p*2+1,med+1,r,k,val);
  seg[p]=max(seg[p*2],seg[p*2+1]);
}
ll query(ll p,ll l,ll r,ll l1,ll r1){
  if(l>r || l>r1 || l1>r)return 0;
  if(l>=l1 && r<=r1)return seg[p];
  ll med=(l+r)>>1;
  return max(query(p*2,l,med,l1,r1),query(p*2+1,med+1,r,l1,r1));
}
int main()
{
  //flash;
  ll n,q;
  cin>>n>>q;
  for (ll i = 0; i < n; ++i)
  {
    ll yo;
    cin>>yo;
    yo--;
    ari[i]=yo;
    zi[yo].first=i;
  }
  for (ll i = 0; i < n; ++i)
  {
    ll yo;
    cin>>yo;
    yo--;
    zi[yo].second.first=i;
  }
  for (ll i = 0; i < n; ++i)
  {
    ll yo;
    cin>>yo;
    yo--;
    zi[yo].second.second=i;
  }
  for (int i = 0; i < n; ++i)
  {
    upd(1,0,n-1,zi[i].first,max(zi[i].second.first,zi[i].second.second));
  }
  ll l=0,r=0;
  set<ll>ans;
  while(query(1,0,n-1,l,r)+1!=(r-l+1)){
    ll cur=query(1,0,n-1,l,r);
    r++;
  }
  for (ll i = 0; i <= r; ++i)
  {
    ans.insert(ari[i]);
  }
  while(q--){
    ll na;
    cin>>na;
    if(na==1){
      ll x;
      cin>>x;
      x--;
      if(ans.find(x)!=ans.end()){
        cout<<"DA"<<'\n';
      }
      else cout<<"NE"<<'\n';
    }
    else{
      int x,y,z;
      cin>>x>>y>>z;
      y--,z--;
      if(x==1){
        ari[zi[y].first]=z;
        ari[zi[z].first]=y;
        swap(zi[y].first,zi[z].first);
      }
      if(x==2)swap(zi[y].second.first,zi[z].second.first);
      if(x==3)swap(zi[y].second.second,zi[z].second.second);
      memset(seg,0,sizeof seg);
      for (int i = 0; i < n; ++i)
      {
        upd(1,0,n-1,zi[i].first,max(zi[i].second.first,zi[i].second.second));
      }
      ll l1=0,r1=0;
      ans.clear();
      while(query(1,0,n-1,l1,r1)+1!=(r1-l1+1)){
        ll cur=query(1,0,n-1,l1,r1);
        r1++;
      }
      for (ll i = 0; i <= r1; ++i)
      {
        ans.insert(ari[i]);
      }
    }
  }
  return 0;
}

Compilation message (stderr)

tenis.cpp:5:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("O3")
 
tenis.cpp:6:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
 #pragma GCC optimization ("unroll-loops")
 
tenis.cpp: In function 'int main()':
tenis.cpp:86:8: warning: unused variable 'cur' [-Wunused-variable]
     ll cur=query(1,0,n-1,l,r);
        ^~~
tenis.cpp:124:12: warning: unused variable 'cur' [-Wunused-variable]
         ll cur=query(1,0,n-1,l1,r1);
            ^~~
tenis.cpp: In function 'void setIO(std::__cxx11::string)':
tenis.cpp:28:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen((s+".in").c_str(),"r",stdin);
   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tenis.cpp:29:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
   freopen((s+".out").c_str(),"w",stdout);
   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 0 / 12
• Subtask 4: 21 / 21
• Subtask 5: 0 / 49