Submission #945968

#	Time	Username	Problem	Language	Result	Execution time	Memory
945968		mansur	Game (IOI13_game)	C++17	37 / 100	13066 ms	36448 KiB

game

#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;
vector<vector<ll>> t;

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;
}

ll get(int R, int l, int r, int u = 1, int tl = 0, int tr = m - 1) {
	if (tl > r || tr < l || !t[R][u]) return 0;
	if (tl >= l && tr <= r) return t[R][u];
	int m = (tl + tr) / 2;
	return gcd2(get(R, l, r, u * 2, tl, m), get(R, l, r, u * 2 + 1, m + 1, tr));
}

void upd(int R, int p, ll v, int u = 1, int tl = 0, int tr = m - 1) {
	if (tl == tr) {
		t[R][u] = v;
		return;
	}
	int m = (tl + tr) / 2;
	if (p <= m) upd(R, p, v, u * 2, tl, m);
	else upd(R, p, v, u * 2 + 1, m + 1, tr);
	t[R][u] = gcd2(t[R][u * 2], t[R][u * 2 + 1]);
}

void init(int R, int C) {
    n = R, m = C;
    t.resize(n);
    for (int i = 0; i < 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) {
	ll ans = 0;
	for (int i = P; i <= U; i++) {
		ans = gcd2(ans, get(i, Q, V));
	}
	return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 27 / 27
• Subtask 3: 0 / 26
• Subtask 4: 0 / 17
• Subtask 5: 0 / 20