Submission #35733

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
35733	2017-11-29T07:57:00 Z	funcsr	ICC (CEOI16_icc)	C++14	Compilation error	0 ms	0 KB

icc

#include "icc.h"
#include <iostream>
#include <vector>
#include <random>
#include <tuple>
#include <ctime>
#define rep(i, n) for (int i=0; i<(n); i++)
#define pb push_back
#define all(x) x.begin(), x.end()

using namespace std;
mt19937 mt_rand(time(NULL));

int query(vector<int> a, vector<int> b) {
  //cout<<"query({";for(int x:a)cout<<x<<",";cout<<"}, {";for(int x:b)cout<<x<<",";cout<<"})\n";
  int ar[100] = {}, br[100] = {};
  rep(i, a.size()) ar[i] = a[i]+1;
  rep(i, b.size()) br[i] = b[i]+1;
  return query(a.size(), b.size(), ar, br);
}
int N;
int U[100];
vector<int> R[100];
int find(int x) {
  if (U[x] == x) return x;
  return U[x] = find(U[x]);
}
void unite(int x, int y) {
  x = find(x), y = find(y);
  if (x == y) return;
  U[y] = x;
  for (int t : R[y]) R[x].pb(t);
  R[y].clear();
}
vector<int> roots() {
  vector<int> ret;
  rep(i, N) if (find(i) == i) ret.pb(i);
  return ret;
}
pair<vector<int>, vector<int>> divide2() {
  vector<int> vs = roots();
  int n = vs.size();
  while (true) {
    shuffle(all(vs), mt_rand);
    vector<int> a, b;
    rep(i, n) {
      if (i < n/2) for (int x : R[vs[i]]) a.pb(x);
      else         for (int x : R[vs[i]]) b.pb(x);
    }
    if (query(a, b)) return make_pair(a, b);
  }
}
int find(vector<int> X, vector<int> other) {
  if (X.size() == 1) return X[0];
  vector<int> a, b;
  int n = X.size();
  rep(i, n) {
    if (i < n/2) a.pb(X[i]);
    else         b.pb(X[i]);
  }
  if (query(a, other)) return find(a, other);
  else                 return find(b, other);
}

void run(int n) {
  N = n;
  rep(i, N) U[i] = i, R[i].pb(i);

  rep(_, N-1) {
    vector<int> a, b;
    tie(a, b) = divide2();
    int u = find(a, b), v = find(b, a);
    //cout<<u<<"<->"<<v<<"\n";
    setRoad(u+1, v+1);
    unite(u, v);
  }
}

Compilation message

icc.cpp: In function 'int query(std::vector<int>, std::vector<int>)':
icc.cpp:7:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define rep(i, n) for (int i=0; i<(n); i++)
                                  ^
icc.cpp:17:3: note: in expansion of macro 'rep'
   rep(i, a.size()) ar[i] = a[i]+1;
   ^
icc.cpp:7:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define rep(i, n) for (int i=0; i<(n); i++)
                                  ^
icc.cpp:18:3: note: in expansion of macro 'rep'
   rep(i, b.size()) br[i] = b[i]+1;
   ^
icc.cpp: In function 'std::pair<std::vector<int>, std::vector<int> > divide2()':
icc.cpp:44:29: error: 'shuffle' was not declared in this scope
     shuffle(all(vs), mt_rand);
                             ^