Submission #102078

#TimeUsernameProblemLanguageResultExecution timeMemory
102078bert30702Mechanical Doll (IOI18_doll)C++17
47 / 100
195 ms11952 KiB
#include <bits/stdc++.h> #include "doll.h" using namespace std; const int MX = 4e5 + 1000; int ptr = 0; int x[MX], y[MX], c[MX]; //void answer(vector<int> c, vector<int> x, vector<int> y) { // cout << x.size() << endl; // for(auto it: c) cout << it << ' '; cout << endl; // for(auto it: x) cout << it << ' '; cout << endl; // for(auto it: y) cout << it << ' '; cout << endl; //} int build(vector<int> v) { if(ptr != 0 and *max_element(v.begin(), v.end()) == *min_element(v.begin(), v.end())) return v[0]; int d = --ptr; vector<int> a, b; for(int i = 0; i < v.size(); i ++) { if(i & 1) b.push_back(v[i]); else a.push_back(v[i]); } x[-d] = build(a); y[-d] = build(b); return d; } void create_circuit(int n, vector<int> v) { vector<int> a(v.begin() + 1, v.end()); a.push_back(0); int k = max(2, 1 << __lg(a.size() * 2 - 1)); vector<int> tmp(k), GG(k, 0); int need = k - a.size(); for(int i = 0; i < need; i ++) tmp[i] = -1; for(int i = 0; i < a.size(); i ++) tmp[i + need] = a[i]; // for(int i = k / 2; i >= 1; i >>= 1) { // for(int j = 0; j < k; j += i) { // if(!GG[j] and need) { // GG[j] = true, tmp[j] = -1, need --; // } // } // } // for(int i = k - 1; i >= 0; i --) { // if(!GG[i]) tmp[i] = a.back(), a.pop_back(); // } build(tmp); c[0] = v[0]; for(int i = 1; i <= n; i ++) c[i] = -1; answer( vector<int>(c, c + n + 1), vector<int>(x + 1, x + 1 - ptr), vector<int>(y + 1, y + 1 - ptr) ); } //main () { // create_circuit(100000, {44135, 56348, 19047, 45933, 82429, 97231, 20613, 10472, 34398, 72594, 60486, 14499, 13048, 53662, 38600, 74603}); //}

Compilation message (stderr)

doll.cpp: In function 'int build(std::vector<int>)':
doll.cpp:17:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  for(int i = 0; i < v.size(); i ++) {
      |                 ~~^~~~~~~~~~
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:31:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |  for(int i = 0; i < a.size(); i ++) tmp[i + need] = a[i];
      |                 ~~^~~~~~~~~~
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