Submission #361617

#	Time	Username	Problem	Language	Result	Execution time	Memory
361617		gratus907	Game (IOI13_game)	C++17	100 / 100	3800 ms	82360 KiB

game

#include <bits/stdc++.h>
#include "game.h"
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#define ll long long
#define int ll
#define eps 1e-7
#define all(x) ((x).begin()),((x).end())
#define usecppio ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
const int MAXR = 1000000007;
const int MAXC = 1000000007;

int game_gcd(int a, int b) 
{
    if (a == 0 || b == 0) return a + b;
    else return __gcd(a, b);
}
void init(int32_t R, int32_t C) {}
int agg(int a, int b) {return game_gcd(a, b);}
struct Dynamic2DSeg
{
    struct Node
    {
        Node (int l, int r, int v = 0) : l(l), r(r), v(v), lc(NULL), rc(NULL){}
        int l, r, v;
        Node *lc, *rc;
    };
    struct RowNode
    {
        RowNode () : lc(NULL), rc(NULL), rowRoot(0, MAXC, 0){}
        Node rowRoot;
        RowNode *lc, *rc;
    };
    RowNode root;
    static void update2(Node *node, int idx, int dt)
    {
        int lo = node -> l;
        int hi = node -> r;
        int mid = (lo + hi) / 2;
        if (lo + 1 == hi)
        {
            node -> v = dt;
            return;
        }
        Node *& next = idx < mid ? node -> lc : node -> rc;
        if (next == NULL)
            next = new Node(idx, idx + 1, dt);
        else if (next -> l <= idx && idx < next -> r)
            update2(next, idx, dt);
        else
        {
            do {
                (idx < mid ? hi : lo) = mid;
                mid = (lo + hi) / 2;
            } while ((idx < mid) == (next->l < mid));
            Node * nnode = new Node(lo, hi);
            (next->l < mid ? nnode->lc : nnode->rc) = next;
            next = nnode;

            update2(nnode, idx, dt);
        }
        node -> v = agg(node->lc?node->lc->v:0, node->rc?node->rc->v:0);
    }
    static void update1(RowNode * node, int lo, int hi, int ridx, int idx, int dt)
    {
        int mid = (lo + hi) / 2;
        if (lo + 1 == hi)
            update2(&node -> rowRoot, idx, dt);
        else
        {
            RowNode *& nnode = ridx < mid ? node -> lc : node -> rc;
            (ridx < mid ? hi : lo) = mid;
            if (nnode == NULL)
                nnode = new RowNode();
            update1(nnode, lo, hi, ridx, idx, dt);
            dt = agg(node->lc ? query2(&node->lc->rowRoot, idx, idx + 1) : 0,
                     node->rc ? query2(&node->rc->rowRoot, idx, idx + 1) : 0);
            update2(&node->rowRoot, idx, dt);
        }
    }
    static int query2(Node *node, int a, int b)
    {
        if (node == NULL || b <= node -> l || node -> r <= a)
            return 0;
        else if (a <= node -> l && node -> r <= b)
            return node -> v;
        return agg(query2(node->lc, a, b), query2(node->rc, a, b));
    }
    static int query1(RowNode *node, int lo, int hi, int a1, int b1, int a2, int b2)
    {
        if (node == NULL || b1 <= lo || hi <= a1)
            return 0;
        else if (a1 <= lo && hi <= b1)
            return query2(&node->rowRoot, a2, b2);
        int mid = (lo + hi) / 2;
        return agg(query1(node->lc, lo, mid, a1, b1, a2, b2),
                   query1(node->rc, mid, hi, a1, b1, a2, b2));
    }
    void update(int x, int y, int dt)
    {
        update1(&root, 0, MAXR, x, y, dt);
    }
    int query(int x1, int y1, int x2, int y2)
    {
        return query1(&root, 0, MAXR, x1, x2 + 1, y1, y2 + 1);
    }
} DSEG;

void update(int32_t P,int32_t Q,long long K)
{
    DSEG.update(P, Q, K);
}
long long calculate(int32_t P,int32_t Q,int32_t U,int32_t V){
    return DSEG.query(P, Q, U, V);
}

Compilation message (stderr)

game.cpp: In constructor 'Dynamic2DSeg::RowNode::RowNode()':
game.cpp:34:23: warning: 'Dynamic2DSeg::RowNode::rc' will be initialized after [-Wreorder]
   34 |         RowNode *lc, *rc;
      |                       ^~
game.cpp:33:14: warning:   'Dynamic2DSeg::Node Dynamic2DSeg::RowNode::rowRoot' [-Wreorder]
   33 |         Node rowRoot;
      |              ^~~~~~~
game.cpp:32:9: warning:   when initialized here [-Wreorder]
   32 |         RowNode () : lc(NULL), rc(NULL), rowRoot(0, MAXC, 0){}
      |         ^~~~~~~

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