Submission #795732

#	Time	Username	Problem	Language	Result	Execution time	Memory
795732		WLZ	Vision Program (IOI19_vision)	C++17	32 / 100	11 ms	1960 KiB

vision

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

int h, w, k;

void construct_network(int H, int W, int K) {
  h = H; w = W; k = K;
  if (k == h + w - 2) {
    add_or({add_and({0, h * w - 1}), add_and({w - 1, (h - 1) * w})});
    return;
  }
  map<int, vector<int> > diag1, diag2;
  map<int, int> rep1, rep2;
  for (int i = 0; i < h; i++) {
    for (int j = 0; j < w; j++) {
      diag1[i - j].push_back(i * w + j);
      diag2[i + j].push_back(i * w + j);
    }
  }
  for (auto &p : diag1) rep1[p.first] = add_or(p.second);
  for (auto &p : diag2) rep2[p.first] = add_or(p.second);
  vector<int> vx(h + w - 1), vy(h + w - 1);
  for (int d = h + w - 2; d >= k; d--) {
    vector<int> v1, v2;
    for (auto &p : rep1) {
      if (p.first >= rep1.begin()->first + d) break;
      vector<int> tmp;
      for (int i = p.first; ; i += d) {
        if (!rep1.count(i)) break;
        tmp.push_back(rep1[i]);
      }
      if ((int) tmp.size() > 1) v1.push_back(add_xor({add_or(tmp), add_xor(tmp)}));
    }
    vx[d] = add_or(v1);
    for (auto &p : rep2) {
      if (p.first >= rep2.begin()->first + d) break;
      vector<int> tmp;
      for (int i = p.first; ; i += d) {
        if (!rep2.count(i)) break;
        tmp.push_back(rep2[i]);
      }
      if ((int) tmp.size() > 1) v2.push_back(add_xor({add_or(tmp), add_xor(tmp)}));
    }
    vy[d] = add_or(v2);
  }
  vector<int> tmp1, tmp2;
  for (int d = h + w - 2; d > k; d--) {
    tmp1.push_back(vx[d]);
    tmp2.push_back(vy[d]);
  }
  int a = add_or({add_or(tmp1), add_or(tmp2)});
  tmp1.push_back(vx[k]); tmp2.push_back(vy[k]);
  int b = add_or({add_or(tmp1), add_or(tmp2)});
  add_xor({a, b});
}

• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 0 / 15
• Subtask 5: 0 / 12
• Subtask 6: 0 / 8
• Subtask 7: 0 / 14
• Subtask 8: 0 / 19