Submission #946081

#TimeUsernameProblemLanguageResultExecution timeMemory
946081mansurGame (IOI13_game)C++17
37 / 100
1026 ms256000 KiB
#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3") #include "game.h" #include<bits/stdc++.h> using namespace std; #define all(a) a.begin(), a.end() #define rall(a) a.rbegin(), a.rend() #define sz(a) (int)a.size() #define s second #define f first using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; const int N = 2001; int n, m; long long gcd2(long long X, long long Y) { long long tmp; while (X != Y && Y != 0) { tmp = X; X = Y; Y = tmp % Y; } return X; } vector<vector<ll>> t; void upd1(bool is, int v, int p, ll vl, int u = 1, int tl = 0, int tr = m - 1) { if (tl == tr) { if (is) t[v][u] = vl; else t[v][u] = gcd2(t[v * 2][u], t[v * 2 + 1][u]); return; } int md = (tl + tr) / 2; if (p <= md) upd1(is, v, p, vl, u * 2, tl, md); else upd1(is, v, p, vl, u * 2 + 1, md + 1, tr); t[v][u] = gcd2(t[v][u * 2], t[v][u * 2 + 1]); } void upd(int p1, int p2, ll vl, int u = 1, int tl = 0, int tr = n - 1) { if (tl == tr) { upd1(1, u, p2, vl); return; } int md = (tl + tr) / 2; if (p1 <= md) upd(p1, p2, vl, u * 2, tl, md); else upd(p1, p2, vl, u * 2 + 1, md + 1, tr); upd1(0, u, p2, vl); } ll get1(int v, int l, int r, int u = 1, int tl = 0, int tr = m - 1) { if (tl > r || tr < l) return 0; if (tl >= l && tr <= r) return t[v][u]; int md = (tl + tr) / 2; return gcd2(get1(v, l, r, u * 2, tl, md), get1(v, l, r, u * 2 + 1, md + 1, tr)); } ll get(int l1, int r1, int l2, int r2, int u = 1, int tl = 0, int tr = n - 1) { if (tl > r1 || tr < l1) return 0; if (tl >= l1 && tr <= r1) return get1(u, l2, r2); int md = (tl + tr) / 2; return gcd2(get(l1, r1, l2, r2, u * 2, tl, md), get(l1, r1, l2, r2, u * 2 + 1, md + 1, tr)); } void init(int R, int C) { n = R, m = C; t.resize(4 * n); for (int i = 0; i < 4 * n; i++) t[i].resize(4 * m); } void update(int P, int Q, ll K) { upd(P, Q, K); } ll calculate(int P, int Q, int U, int V) { return get(P, U, Q, V); }
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