Submission #789939

#	Time	Username	Problem	Language	Result	Execution time	Memory
789939		Trisanu_Das	Mechanical Doll (IOI18_doll)	C++17	Compilation error	0 ms	0 KiB

doll

#include <bits/stdc++.h>
#include "doll.h"
using namespace std;

vector<int> s;
int x[300005], y[300005], vis[300005], v, b = 1, n;

int dfs(int l, int r){
  if(l >= n) return -1;
  if(r - l > 1){
    int mid = (l + r) / 2, u = v++;
    y[u] = dfs(l, mid);
    x[u] = dfs(mid, r);
    return -(u + 1);
  }
  return 1;
}

void create_circuit(int m, vector<int> a){
  s.assign(m + 1, -1);
  a.push_back(0);
  n = a.size();
  while(b < n) b *= 2;
  dfs(0, b);
  for(int i : a){
    int u = 0;
    while(u > -1){
      vis[u] ^= 1;
      int &w = vis[u] ? x[u] : y[u];
      if(w >= 0) w = i, u = -1;
      else u = -(w + 1);
    }
  }
  x.resize(v);
  y.resize(v);
  answer(s, x, y);
}

Compilation message (stderr)

doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:34:5: error: request for member 'resize' in 'x', which is of non-class type 'int [300005]'
   34 |   x.resize(v);
      |     ^~~~~~
doll.cpp:35:5: error: request for member 'resize' in 'y', which is of non-class type 'int [300005]'
   35 |   y.resize(v);
      |     ^~~~~~
doll.cpp:36:13: error: could not convert '(int*)(& x)' from 'int*' to 'std::vector<int>'
   36 |   answer(s, x, y);
      |             ^
      |             |
      |             int*