Submission #297579

#	Time	Username	Problem	Language	Result	Execution time	Memory
297579		davi_bart	Mechanical Doll (IOI18_doll)	C++14	6 / 100	109 ms	12076 KiB

doll

#include<bits/stdc++.h>
#include "doll.h"
using namespace std;
#define ll long long
#define fi first
#define se second

void answer(std::vector<int> C, std::vector<int> X, std::vector<int> Y);

void create_circuit(int M, std::vector<int> A) {
  int N = A.size();
  std::vector<int> C(M+1,0);
  vector<int> X,Y;

  vector<int> volte[M+2];
  vector<bool> vis(M+2,0);
  A.push_back(0);
  for(int i=0;i<A.size()-1;i++){
      volte[A[i]].push_back(A[i+1]);
  }
  C[0]=A[0];
  int S=1;
  for(int i=0;i<A.size()-1;i++){
    if(volte[A[i]].size()==2){
      if(vis[A[i]])continue;
      vis[A[i]]=1;
      X.push_back(A[i+1]);
      Y.push_back(volte[A[i]][1]);
      C[A[i]]=-S;
      S++;
      continue;
    }
    C[A[i]]=A[i+1];
  }
  answer(C, X, Y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:18:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |   for(int i=0;i<A.size()-1;i++){
      |               ~^~~~~~~~~~~
doll.cpp:23:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |   for(int i=0;i<A.size()-1;i++){
      |               ~^~~~~~~~~~~
doll.cpp:11:7: warning: unused variable 'N' [-Wunused-variable]
   11 |   int N = A.size();
      |       ^

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