Submission #972784

#	Time	Username	Problem	Language	Result	Execution time	Memory
972784		kwongweng	Mechanical Doll (IOI18_doll)	C++17	16 / 100	61 ms	12232 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef long double ld;
typedef vector<vector<ll>> vll;
#define FOR(i, a, b) for(int i = a; i < b; i++)
#define ROF(i, a, b) for(int i = a; i >= b; i--)
#define pb push_back
#define ms memset
#define fi first
#define se second

void create_circuit(int M, vi A) {
  int N = A.size();
  vi C(M + 1);
  C[0] = A[0];
  vi nxt[M+1];
  FOR(i,0,N-1){
    nxt[A[i]].pb(A[i+1]);
  }
  nxt[A[N-1]].pb(0);
  int cur = 1; vi X,Y;
  FOR(i,1,M+1){
    if (nxt[i].size()==1) C[i] = nxt[i][0];
    if (nxt[i].size()==2){
      C[i] = -cur; cur++;
      X.pb(nxt[i][0]); Y.pb(nxt[i][1]);
    }
    if (nxt[i].size()==3){
      C[i] = -cur;
      X.pb(-cur-1); Y.pb(-cur-2);
      X.pb(nxt[i][0]); Y.pb(-cur);
      X.pb(nxt[i][1]); Y.pb(nxt[i][2]);
      cur += 3;
    }
    if (nxt[i].size()==4){
      C[i] = -cur;
      X.pb(-cur-1); Y.pb(-cur-2);
      X.pb(nxt[i][0]); Y.pb(nxt[i][2]);
      X.pb(nxt[i][1]); Y.pb(nxt[i][3]);
      cur+=3;
    }
  }
  answer(C, X, Y);
}

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