Submission #102844

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
102844	2019-03-28 01:01:26	wxh010910	Mechanical Doll (IOI18_doll)	C++17	100 / 100	114 ms	10788 KiB

doll

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#include <bits/stdc++.h>
#include "doll.h"
using namespace std;
const int inf = 0x3f3f3f3f;
void create_circuit(int m, vector<int> a) {
  int n = a.size(), base = 1;
  a.push_back(0);
  while (base < n) {
    base <<= 1;
  }
  vector<int> rev(base);
  for (int i = 0; i < base; ++i) {
    rev[i] = rev[i >> 1] >> 1 | (i & 1 ? base >> 1 : 0);
  }
  vector<int> real(base, -1);
  for (int i = base - n; i < base; ++i) {
    real[rev[i]] = i;
  }
  vector<int> id(base);
  for (int i = 0, total = 0; i < base; ++i) {
    if (~real[i]) {
      id[real[i]] = ++total;
    }
  }
  
  vector<int> x, y;
  
 
 
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Compilation message (stderr)

doll.cpp: In lambda function:
doll.cpp:39:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   39 |       int m = l + r >> 1;
      |               ~~^~~

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