Submission #1051178

#	Time	Username	Problem	Language	Result	Execution time	Memory
1051178		Trent	Rarest Insects (IOI22_insects)	C++17	25 / 100	202 ms	596 KiB

insects

#include "insects.h"
#include "bits/stdc++.h"
using namespace std;
#define forR(i, x) for(int i = 0; i < (x); ++i)
#define REP(i, a, b) for(int i = (a); i < (b); ++i)
#define all(x) x.begin(), x.end()
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<bool> vb;

int INF = 1e7;
int min_cardinality(int N) {
  vvi dst;
  set<int> vals;
  forR(i, N) vals.insert(i);
  while(dst.size() <= 1 || dst[dst.size() - 1].size() == dst[dst.size() - 2].size()) {
    dst.emplace_back();
    for(int i : vals) {
      move_inside(i);
      if(press_button() == dst.size()) {
        dst.back().push_back(i);
      } else {
        move_outside(i);
      }
    }
    for(int i : dst.back()) vals.erase(vals.find(i));
    if(dst.size() == 1 && dst.back().size() <= 32) {
      for(int i : dst.back()) move_outside(i);
      int mVal = INF;
      for(int i : dst.back()) {
        move_inside(i);
        int tot = 0;
        for(int j : vals) {
          move_inside(j);
          if(press_button() == 2) ++tot;
          move_outside(j);
        }
        mVal = min(mVal, tot + 1);
        move_outside(i);
      }
      return mVal;
    }
  }
  // for(vi& i : dst) {
  //   for(int j : i) cerr << j << ' ';
  //   cerr << '\n';
  // }
  return dst.size() - 1;
}

Compilation message (stderr)

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:22:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |       if(press_button() == dst.size()) {
      |          ~~~~~~~~~~~~~~~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 0 / 75