Submission #422853

#	Time	Username	Problem	Language	Result	Execution time	Memory
422853		SSRS	Vision Program (IOI19_vision)	C++14	100 / 100	16 ms	1896 KiB

vision

#include <bits/stdc++.h>
#include "vision.h"
using namespace std;
void construct_network(int H, int W, int K){
  int mx = H + W - 1;
  vector<vector<int>> id1(mx), id2(mx);
  for (int i = 0; i < H; i++){
    for (int j = 0; j < W; j++){
      id1[i + j].push_back(i * W + j);
      id2[i - j + (W - 1)].push_back(i * W + j);
    }
  }
  vector<int> a(mx), b(mx);
  for (int i = 0; i < mx; i++){
    a[i] = add_or(id1[i]);
    b[i] = add_or(id2[i]);
  }
  vector<int> id;
  for (int i = 0; i < 2; i++){
    vector<int> A;
    for (int j = 0; j < mx - K; j++){
      A.push_back(add_and({a[j], a[j + K]}));
    }
    vector<int> S(mx + 1);
    S[1] = b[0];
    for (int j = 1; j < mx; j++){
      S[j + 1] = add_xor({S[j], b[j]});
    }
    vector<int> B = {S[mx]};
    for (int j = 0; j < mx; j++){
      int l = j + 1;
      int r = min(j + K + 1, mx);
      B.push_back(add_and({b[j], add_xor({S[l], S[r]})}));
    }
    id.push_back(add_and({add_or(A), add_or(B)}));
    swap(a, b);
  }
  add_or(id);
}

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