Submission #1108964

#TimeUsernameProblemLanguageResultExecution timeMemory
1108964KerimMosaic (IOI24_mosaic)C++17
22 / 100
719 ms95824 KiB
#include "bits/stdc++.h" #define ll long long #define pb push_back #define pii pair<int, int> using namespace std; const int N = 4e5+5; int cnt[N]; int wow(int a, int b){ return (!(a|b)?1:0); } vector<ll> mosaic(vector<int> X, vector<int> Y, vector<int> T, vector<int> B, vector<int> L, vector<int> R){ memset(cnt, -1, sizeof cnt); int n = (int)X.size(); assert(X.front()==Y.front()); map<pii, int> mp; for(int i = 1; i <= n; ++i) mp[{1, i}] = X[i-1], mp[{i, 1}] = Y[i-1]; for(int i = 2; i <= n; ++i) for(int j = 2; j <= 3; ++j) mp[{i, j}] = wow(mp[{i-1, j}], mp[{i, j-1}]); for(int i = 2; i <= 3; ++i) for(int j = 2; j <= n; ++j) mp[{i, j}] = wow(mp[{i-1, j}], mp[{i, j-1}]); // int ii = 3; // for(int jj = 3; jj <= n; ++jj) // cnt[ii-jj+n] = mp[{ii, jj}]; for (auto [key, value]: mp) cnt[key.first-key.second+n] = value; vector<ll> ans; for(int i = 0; i < (int)L.size(); ++i){ int x = T[i]+1, y = L[i]+1; if(x <= 3 or y <= 3) ans.pb(mp[{x, y}]); else ans.pb(cnt[x-y+n]); } return ans; } // int main(){ // int n; // scanf("%d", &n); // vector<int> X, Y; // for(int i = 1; i <= n; ++i){ // int x; // scanf("%d", &x); // X.pb(x); // } // for(int i = 1; i <= n; ++i){ // int x; // scanf("%d", &x); // Y.pb(x); // } // int q; // scanf("%d", &q); // vector<int> T, B, L, R; // while(q--){ // int a, b, c, d; // scanf("%d%d%d%d", &a, &b, &c, &d); // T.pb(a), B.pb(b), L.pb(c), R.pb(d); // } // vector<ll> ans = mosaic(X, Y, T, B, L, R); // for(ll i : ans) // printf("%lld ", i); // puts(""); // return 0; // }
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