Submission #223754

#	Time	Username	Problem	Language	Result	Execution time	Memory
223754		rama_pang	Vision Program (IOI19_vision)	C++14	44 / 100	80 ms	7416 KiB

vision

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

int IsExist(int H, int W, int K) { // Check whether there exists one of the values >= K
  vector<vector<int>> diagL(H + W - 1); // from topleft
  vector<vector<int>> diagR(H + W - 1); // from topright

  for (int x = 0; x < H; x++) {
    for (int y = 0; y < W; y++) {
      diagL[x + y].emplace_back(x * W + y);
      diagR[x + W - y - 1].emplace_back(x * W + y);
    }
  }
  
  vector<int> prefL; // diagonal prefix from topleft
  vector<int> prefR; // diagonal prefix from topright
  vector<int> check; // check for diagonal_distance >= K from either topleft or topright

  for (int d = K; d < H + W - 1; d++) {
    prefL.insert(end(prefL), begin(diagL[d - K]), end(diagL[d - K]));
    prefR.insert(end(prefR), begin(diagR[d - K]), end(diagR[d - K]));
    check.emplace_back(add_and({add_or(diagL[d]), add_or(prefL)}));
    check.emplace_back(add_and({add_or(diagR[d]), add_or(prefR)}));
  }

  return add_or(check);
}

void construct_network(int H, int W, int K) {
  if (K == H + W - 2) {
    IsExist(H, W, K);
  } else {
    add_and({IsExist(H, W, K), add_not(IsExist(H, W, K + 1))});
  }
}

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