Submission #101490

#	Time	Username	Problem	Language	Result	Execution time	Memory
101490		briansu	Mechanical Doll (IOI18_doll)	C++14	37 / 100	208 ms	12704 KiB

doll

//{
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double lf;
typedef pair<ll,ll> ii;
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define FILL(i,n) memset(i,n,sizeof i)
#define X first
#define Y second
#define SZ(_a) (int)_a.size()
#define ALL(_a) _a.begin(),_a.end()
#define pb push_back
#ifdef brian
#define debug(...) do{\
    fprintf(stderr,"%s - %d (%s) = ",__PRETTY_FUNCTION__,__LINE__,#__VA_ARGS__);\
    _do(__VA_ARGS__);\
}while(0)
template<typename T>void _do(T &&_x){cerr<<_x<<endl;}
template<typename T,typename ...S> void _do(T &&_x,S &&..._t){cerr<<_x<<" ,";_do(_t...);}
template<typename _a,typename _b> ostream& operator << (ostream &_s,const pair<_a,_b> &_p){return _s<<"("<<_p.X<<","<<_p.Y<<")";}
template<typename It> ostream& _OUTC(ostream &_s,It _ita,It _itb)
{
    _s<<"{";
    for(It _it=_ita;_it!=_itb;_it++)
    {
        _s<<(_it==_ita?"":",")<<*_it;
    }
    _s<<"}";
    return _s;
}
template<typename _a> ostream &operator << (ostream &_s,vector<_a> &_c){return _OUTC(_s,ALL(_c));}
template<typename _a> ostream &operator << (ostream &_s,set<_a> &_c){return _OUTC(_s,ALL(_c));}
template<typename _a,typename _b> ostream &operator << (ostream &_s,map<_a,_b> &_c){return _OUTC(_s,ALL(_c));}
template<typename _t> void pary(_t _a,_t _b){_OUTC(cerr,_a,_b);cerr<<endl;}
#define IOS()
#else
#define debug(...)
#define pary(...)
#define endl '\n'
#define IOS() ios_base::sync_with_stdio(0);cin.tie(0);
#endif // brian
//}

const ll MAXn = 200000 + 5;

vector<int> C, X, Y;
ll sit = 0;

#include "doll.h"

ll nnd(){
  X.pb(0);
  Y.pb(0);
  return --sit;
}

void build(ll now, vector<int> v)
{
  vector<int> d[2];
  d[0].clear();d[1].clear();
  if(SZ(v) & 1)d[0].pb(now);
  for(int i = 0, fg = (SZ(v) & 1);i < SZ(v);i++,fg = !fg){
    d[fg].pb(v[i]);
  }
  if(SZ(d[0]) == 1)X[-now-1] = d[0][0];
  else build(X[-now-1] = nnd(), d[0]);
  if(SZ(d[1]) == 1)Y[-now-1] = d[1][0];
  else build(Y[-now-1] = nnd(), d[1]);
}

void create_circuit(int M, std::vector<int> A) {
  ll n = SZ(A);
  A.pb(0);
  X.clear();Y.clear();sit = 0;
  ll rt = nnd();
  build(rt, A);
  C.clear();
  REP(i, M+1)C.pb(rt);
  answer(C, X, Y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:74:6: warning: unused variable 'n' [-Wunused-variable]
   74 |   ll n = SZ(A);
      |      ^

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9 / 18
• Subtask 6: 28 / 56