Submission #1037128

#	Time	Username	Problem	Language	Result	Execution time	Memory
1037128		HappyCapybara	Mechanical Doll (IOI18_doll)	C++17	16 / 100	52 ms	12864 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>
using namespace std;

void create_circuit(int M, vector<int> A) {
  vector<vector<int>> v(M+1);
  A.push_back(0);
  for (int i=0; i<A.size()-1; i++) v[A[i]].push_back(A[i+1]);
  v[0].push_back(A[0]);
  vector<int> C(M+1, 0);
  vector<int> X, Y;
  for (int i=0; i<=M; i++){
    if (v[i].size() == 0) continue;
    if (v[i].size() == 1) C[i] = v[i][0];
    if (v[i].size() == 2){
      X.push_back(v[i][0]);
      Y.push_back(v[i][1]);
      C[i] = -X.size();
    }
    if (v[i].size() == 3){
      int cur = X.size();
      C[i] = -(cur+1);
      X.push_back(-(cur+2));
      Y.push_back(-(cur+3));
      X.push_back(v[i][0]);
      Y.push_back(-(cur+1));
      X.push_back(v[i][1]);
      Y.push_back(v[i][2]);
    }
    if (v[i].size() == 4){
      int cur = X.size();
      C[i] = -(cur+1);
      X.push_back(-(cur+2));
      Y.push_back(-(cur+3));
      X.push_back(v[i][0]);
      Y.push_back(v[i][2]);
      X.push_back(v[i][1]);
      Y.push_back(v[i][3]);
    }
  }
  answer(C, X, Y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:8:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |   for (int i=0; i<A.size()-1; i++) v[A[i]].push_back(A[i+1]);
      |                 ~^~~~~~~~~~~

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