Submission #795666

#	Time	Username	Problem	Language	Result	Execution time	Memory
795666		WLZ	Vision Program (IOI19_vision)	C++17	0 / 100	23 ms	2568 KiB

vision

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

int h, w;

int idx(int i, int j) {
  return i * w + j;
}

int add_diagonals(int k) {
  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(idx(i, j));
      diag2[i + j].push_back(idx(i, 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> e1, e2;
  for (auto &p : rep1) {
    if (!rep1.count(p.first + k)) continue;
    e1.push_back(add_and({p.second, rep1[p.first + k]}));
  }
  for (auto &p : rep2) {
    if (!rep2.count(p.first + k)) continue;
    e2.push_back(add_and({p.second, rep2[p.first + k]}));
  }
  return add_or({add_or(e1), add_or(e2)});
}

void construct_network(int H, int W, int K) {
  h = H; w = W;
  if (K == H + W - 2) add_diagonals(K);
  else add_xor({add_diagonals(K), add_diagonals(K + 1)});
}

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