oj.uz

Submission #631715

# Submission time Handle Problem Language Result Execution time Memory
631715 2022-08-18T14:28:23 Z cadmiumsky Minerals (JOI19_minerals) C++14
40 / 100
 33 ms 2500 KB 
#include "minerals.h"
#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()

using namespace std;

int getbit(int x, int shift) {
  if(shift < 0) return 1;
  return (x & (1 << shift)) > 0;
}

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//mt19937 rng(69);

int rnd(int x) { return rng() % x; }

const int nmax = 43e3 + 5;
namespace Q {
  int is[nmax * 2];
  int last = 0, curr = 0;
  bool isdiff() {return last != curr; }
  bool query(int x) { is[x] ^= 1; last = curr; curr = Query(x); return isdiff(); }
}
using namespace Q;
int lg[nmax];
void metasolve(vector<int>& in, vector<int>& out, vector<int>& offset, vector<int>& lim) {
  int N = in.size();
  for(int i = 0; i <= lg[N]; i++) {
    for(int j = 0; j < N; j++) {
      if(getbit(j, i) ^ getbit(j, i - 1))
	query(in[j]);
    }
    for(int j = 0; j < out.size(); j++) {
      if(offset[j] + (1 << i) >= lim[j])
	continue;
      if(!query(out[j]))	
	offset[j] += (1 << i);
    }
  }
  for(int i = 0; i < out.size(); i++) {
    //cerr << "#" << out[i] << ' ' << in[offset[i]] << '\n';
    Answer(in[offset[i]], out[i]);
    in[offset[i]] = -1;
  }
  for(int i = 0; i < in.size(); i++) {
    if(in[i] == -1)
      swap(in[i], in.back()),
      in.pop_back(),
      i--;
  }
  for(auto x : in)
    if(!is[x])
      query(x);
  out.clear();
  offset.clear();
  lim.clear();
}

const int limit = 1023;

void Solve(int N) {
  lg[0] = -1;
  int cnt = 0;
  for(int i = 1; i <= N; i++)
    lg[i] = lg[i >> 1] + 1;
  vector<int> in, out;
  vector<int> offset, lim;
  vector<int> order(2 * N);
  iota(all(order), 1);
  random_shuffle(all(order), rnd);
  
  int last = 0, l = 0;
  for(auto x : order) {
    if(query(x))
      in.push_back(x);
    else {
      out.push_back(x);
      lim.push_back(in.size());
      offset.push_back(0);
      cnt++;
      //cerr << "^ " <<x  << ' ' << in.size() << ' ' << out.size() << '\n';
      if(in.size() == out.size() || cnt > limit) {
	metasolve(in, out, offset, lim);
	cnt = 0;
      }
    }
  }
  //cerr << "\\";
  
  return;
}
#define count asdhshdjsdfhjdhjgdfjkhld

Compilation message

minerals.cpp: In function 'void metasolve(std::vector<int>&, std::vector<int>&, std::vector<int>&, std::vector<int>&)':
minerals.cpp:33:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(int j = 0; j < out.size(); j++) {
      |                    ~~^~~~~~~~~~~~
minerals.cpp:40:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |   for(int i = 0; i < out.size(); i++) {
      |                  ~~^~~~~~~~~~~~
minerals.cpp:45:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |   for(int i = 0; i < in.size(); i++) {
      |                  ~~^~~~~~~~~~~
minerals.cpp: In function 'void Solve(int)':
minerals.cpp:72:7: warning: unused variable 'last' [-Wunused-variable]
   72 |   int last = 0, l = 0;
      |       ^~~~
minerals.cpp:72:17: warning: unused variable 'l' [-Wunused-variable]
   72 |   int last = 0, l = 0;
      |                 ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 2 ms 336 KB Output is correct
3 Correct 3 ms 464 KB Output is correct
4 Correct 8 ms 720 KB Output is correct
5 Correct 20 ms 1104 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 8 ms 720 KB Output is correct
9 Correct 20 ms 1104 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 13 ms 896 KB Output is correct
12 Correct 21 ms 1068 KB Output is correct
13 Correct 23 ms 1156 KB Output is correct
14 Correct 19 ms 1084 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 8 ms 720 KB Output is correct
9 Correct 20 ms 1104 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 13 ms 896 KB Output is correct
12 Correct 21 ms 1068 KB Output is correct
13 Correct 23 ms 1156 KB Output is correct
14 Correct 19 ms 1084 KB Output is correct
15 Incorrect 33 ms 2500 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 8 ms 720 KB Output is correct
9 Correct 20 ms 1104 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 13 ms 896 KB Output is correct
12 Correct 21 ms 1068 KB Output is correct
13 Correct 23 ms 1156 KB Output is correct
14 Correct 19 ms 1084 KB Output is correct
15 Incorrect 33 ms 2500 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 8 ms 720 KB Output is correct
9 Correct 20 ms 1104 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 13 ms 896 KB Output is correct
12 Correct 21 ms 1068 KB Output is correct
13 Correct 23 ms 1156 KB Output is correct
14 Correct 19 ms 1084 KB Output is correct
15 Incorrect 33 ms 2500 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 8 ms 720 KB Output is correct
9 Correct 20 ms 1104 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 13 ms 896 KB Output is correct
12 Correct 21 ms 1068 KB Output is correct
13 Correct 23 ms 1156 KB Output is correct
14 Correct 19 ms 1084 KB Output is correct
15 Incorrect 33 ms 2500 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 8 ms 720 KB Output is correct
9 Correct 20 ms 1104 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 13 ms 896 KB Output is correct
12 Correct 21 ms 1068 KB Output is correct
13 Correct 23 ms 1156 KB Output is correct
14 Correct 19 ms 1084 KB Output is correct
15 Incorrect 33 ms 2500 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 2 ms 336 KB Output is correct
7 Correct 3 ms 464 KB Output is correct
8 Correct 8 ms 720 KB Output is correct
9 Correct 20 ms 1104 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 13 ms 896 KB Output is correct
12 Correct 21 ms 1068 KB Output is correct
13 Correct 23 ms 1156 KB Output is correct
14 Correct 19 ms 1084 KB Output is correct
15 Incorrect 33 ms 2500 KB Wrong Answer [2]
16 Halted 0 ms 0 KB -