제출 #221487

#제출 시각아이디문제언어결과실행 시간메모리
221487galca자동 인형 (IOI18_doll)C++14
9 / 100
123 ms8464 KiB
#include "doll.h" #include <vector> #include <iostream> using namespace std; // N + 1 = 15 // num_bits = 4 // we should have: 1 + 2 + 4 + 8 void create_circuit(int M, std::vector<int> A) { int N = A.size(); std::vector<int> C(M + 1); for (int i = 0; i <= M; ++i) { C[i] = -1; } std::vector<int> X, Y; int num_bits = 0; int tmp = N + 1; while (tmp > 0) { ++num_bits; tmp >>= 1; } int idx = 1; for (int k = 1; k < num_bits; ++k) { int n_nodes = 1 << (k-1); for (int n = 1; n <= n_nodes; n++) { X.push_back(-(idx * 2)); Y.push_back(-(idx * 2 + 1)); idx++; } } // N nodes of the last level are connected to the triggers, the last one // 2^bits-N-1 to -1 // and the last one to origin int n_leaves = 1 << (num_bits-1); int idx_b = X.size(); #if 0 cout << "arrays so far " << endl; for (int i = 0; i < X.size(); i++) { cout << X[i] << " "; } cout << endl; for (int i = 0; i < Y.size(); i++) { cout << Y[i] << " "; } cout << endl; #endif for (int n = 0; n < n_leaves; n++) { X.push_back(-1); Y.push_back(-1); } for (int n = 0; n < N; n++) { // revert the number int offset = n_leaves; int n_tmp = n; int n_pos = 0; while (n_tmp > 0) { if (n_tmp & 1) { n_pos += offset; } n_tmp >>= 1; offset >>= 1; } if (n_pos & 1) { Y[idx_b + n_pos/2] = A[n]; //cout << "connecting trigger " << n << " to Y at " << n_pos / 2 << endl; } else { X[idx_b + n_pos/2] = A[n]; //cout << "connecting trigger " << n << " to X at " << n_pos / 2 << endl; } } Y[Y.size()-1] = 0; #if 0 for (int i = 0; i < X.size(); i++) { cout << X[i] << " "; } cout << endl; for (int i = 0; i < Y.size(); i++) { cout << Y[i] << " "; } cout << endl; #endif answer(C, X, Y); }
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