Submission #845169

#	Time	Username	Problem	Language	Result	Execution time	Memory
845169		12345678	Mechanical Doll (IOI18_doll)	C++17	6 / 100	52 ms	12484 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>

using namespace std;

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

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:11:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     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: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56