oj.uz

Submission #631712

# Submission time Handle Problem Language Result Execution time Memory
631712 2022-08-18T14:09:26 Z cadmiumsky Minerals (JOI19_minerals) C++14
75 / 100
 38 ms 3532 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; }

namespace Q {
  int last = 0, curr = 0;
  bool isdiff() {return last != curr; }
  bool query(int x) { last = curr; curr = Query(x); return isdiff(); }
}
using namespace Q;
const int nmax = 43e3 + 5;
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 < N; j++) {
      if(offset[j] + (1 << i) >= lim[j])
	continue;
      if(!query(out[j]))	
	offset[j] += (1 << i);
    }
  }
  for(int i = 0; i < offset.size(); i++) {
    Answer(in[offset[i]], out[i]);
  }
}

void Solve(int N) {
  lg[0] = -1;
  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);
      if(in.size() == out.size()) {
	metasolve(in, out, offset, lim);
	in.clear();
	out.clear();
	offset.clear();
	lim.clear();
      }
    }
  }
  //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:39:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |   for(int i = 0; i < offset.size(); i++) {
      |                  ~~^~~~~~~~~~~~~~~
minerals.cpp: In function 'void Solve(int)':
minerals.cpp:54:7: warning: unused variable 'last' [-Wunused-variable]
   54 |   int last = 0, l = 0;
      |       ^~~~
minerals.cpp:54:17: warning: unused variable 'l' [-Wunused-variable]
   54 |   int last = 0, l = 0;
      |                 ^

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 464 KB Output is correct
3 Correct 2 ms 592 KB Output is correct
4 Correct 5 ms 848 KB Output is correct
5 Correct 13 ms 1360 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 464 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 5 ms 848 KB Output is correct
9 Correct 13 ms 1360 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 7 ms 1028 KB Output is correct
12 Correct 10 ms 1452 KB Output is correct
13 Correct 11 ms 1488 KB Output is correct
14 Correct 11 ms 1360 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 464 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 5 ms 848 KB Output is correct
9 Correct 13 ms 1360 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 7 ms 1028 KB Output is correct
12 Correct 10 ms 1452 KB Output is correct
13 Correct 11 ms 1488 KB Output is correct
14 Correct 11 ms 1360 KB Output is correct
15 Correct 32 ms 3388 KB Output is correct
16 Correct 34 ms 3388 KB Output is correct
17 Correct 34 ms 3384 KB Output is correct
18 Correct 32 ms 3220 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 464 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 5 ms 848 KB Output is correct
9 Correct 13 ms 1360 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 7 ms 1028 KB Output is correct
12 Correct 10 ms 1452 KB Output is correct
13 Correct 11 ms 1488 KB Output is correct
14 Correct 11 ms 1360 KB Output is correct
15 Correct 32 ms 3388 KB Output is correct
16 Correct 34 ms 3388 KB Output is correct
17 Correct 34 ms 3384 KB Output is correct
18 Correct 32 ms 3220 KB Output is correct
19 Correct 34 ms 3356 KB Output is correct
20 Correct 33 ms 3532 KB Output is correct
21 Correct 33 ms 3356 KB Output is correct
22 Correct 38 ms 3280 KB Output is correct

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 464 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 5 ms 848 KB Output is correct
9 Correct 13 ms 1360 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 7 ms 1028 KB Output is correct
12 Correct 10 ms 1452 KB Output is correct
13 Correct 11 ms 1488 KB Output is correct
14 Correct 11 ms 1360 KB Output is correct
15 Correct 32 ms 3388 KB Output is correct
16 Correct 34 ms 3388 KB Output is correct
17 Correct 34 ms 3384 KB Output is correct
18 Correct 32 ms 3220 KB Output is correct
19 Correct 34 ms 3356 KB Output is correct
20 Correct 33 ms 3532 KB Output is correct
21 Correct 33 ms 3356 KB Output is correct
22 Correct 38 ms 3280 KB Output is correct
23 Incorrect 35 ms 3232 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 464 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 5 ms 848 KB Output is correct
9 Correct 13 ms 1360 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 7 ms 1028 KB Output is correct
12 Correct 10 ms 1452 KB Output is correct
13 Correct 11 ms 1488 KB Output is correct
14 Correct 11 ms 1360 KB Output is correct
15 Correct 32 ms 3388 KB Output is correct
16 Correct 34 ms 3388 KB Output is correct
17 Correct 34 ms 3384 KB Output is correct
18 Correct 32 ms 3220 KB Output is correct
19 Correct 34 ms 3356 KB Output is correct
20 Correct 33 ms 3532 KB Output is correct
21 Correct 33 ms 3356 KB Output is correct
22 Correct 38 ms 3280 KB Output is correct
23 Incorrect 35 ms 3232 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 464 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 5 ms 848 KB Output is correct
9 Correct 13 ms 1360 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 7 ms 1028 KB Output is correct
12 Correct 10 ms 1452 KB Output is correct
13 Correct 11 ms 1488 KB Output is correct
14 Correct 11 ms 1360 KB Output is correct
15 Correct 32 ms 3388 KB Output is correct
16 Correct 34 ms 3388 KB Output is correct
17 Correct 34 ms 3384 KB Output is correct
18 Correct 32 ms 3220 KB Output is correct
19 Correct 34 ms 3356 KB Output is correct
20 Correct 33 ms 3532 KB Output is correct
21 Correct 33 ms 3356 KB Output is correct
22 Correct 38 ms 3280 KB Output is correct
23 Incorrect 35 ms 3232 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 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 464 KB Output is correct
7 Correct 2 ms 592 KB Output is correct
8 Correct 5 ms 848 KB Output is correct
9 Correct 13 ms 1360 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 7 ms 1028 KB Output is correct
12 Correct 10 ms 1452 KB Output is correct
13 Correct 11 ms 1488 KB Output is correct
14 Correct 11 ms 1360 KB Output is correct
15 Correct 32 ms 3388 KB Output is correct
16 Correct 34 ms 3388 KB Output is correct
17 Correct 34 ms 3384 KB Output is correct
18 Correct 32 ms 3220 KB Output is correct
19 Correct 34 ms 3356 KB Output is correct
20 Correct 33 ms 3532 KB Output is correct
21 Correct 33 ms 3356 KB Output is correct
22 Correct 38 ms 3280 KB Output is correct
23 Incorrect 35 ms 3232 KB Wrong Answer [2]
24 Halted 0 ms 0 KB -