Submission #835424

#TimeUsernameProblemLanguageResultExecution timeMemory
835424happypotatoVision Program (IOI19_vision)C++17
44 / 100
28 ms3488 KiB
#include "vision.h" #include <bits/stdc++.h> using namespace std; #define pb push_back void construct_network(int n, int m, int k) { function<int(int, int)> hash = [&](int x, int y) { return x * m + y; }; function<bool(int, int)> valid = [&](int x, int y) { return ((0 <= x && x < n) && (0 <= y && y < m)); }; vector<int> res; vector<int> fin; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { if ((i + j) % (2 * k) < k && (i - j + 1000) % (2 * k) < k) continue; res.clear(); if (valid(i + k, j)) res.pb(hash(i + k, j)); if (valid(i - k, j)) res.pb(hash(i - k, j)); if (valid(i, j + k)) res.pb(hash(i, j + k)); if (valid(i, j - k)) res.pb(hash(i, j - k)); for (int l = 1; l < k; l++) { if (valid(i + l, j + (k - l))) res.pb(hash(i + l, j + (k - l))); if (valid(i + l, j - (k - l))) res.pb(hash(i + l, j - (k - l))); if (valid(i - l, j + (k - l))) res.pb(hash(i - l, j + (k - l))); if (valid(i - l, j - (k - l))) res.pb(hash(i - l, j - (k - l))); } if (!res.empty()) fin.pb(add_and({hash(i, j), add_or(res)})); } } add_or(fin); }
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