Submission #798962

#	Time	Username	Problem	Language	Result	Execution time	Memory
798962		alittlemiddle	Game (IOI13_game)	C++14	0 / 100	1 ms	296 KiB

game

#include "game.h"
#include<bits/stdc++.h>
int m, n;
int gcd(int x, int y)
{
    if (y == 0)
        return x;
    return gcd(y, x % y);
}
struct node1
{
    int l, r, sum;
    node1 *left, *right;
    node1(int _l, int _r)
    {
        l = _l;
        r = _r;
        sum = 0;
        left = right = NULL;
    }
    void update(int i, int v)
    {
        if (r < i || i < l) return;
        if (l==r && l==i)
        {
            sum = v;
            return;
        }
        int mid=(l+r)>>1;
        if(left==NULL) left = new node1(l, mid);
        if(right==NULL) right = new node1(mid+1, r);
        left->update(i, v);
        right->update(i, v);
        sum = gcd(left->sum,  right->sum);
    }

    int get(int a, int b)
    {
        if (r < a || b < l) return 0;
        if (a <= l && r <= b) return sum;
        int mid=(l+r)>>1;
        if(left==NULL) left = new node1(l, mid);
        if(right==NULL) right = new node1(mid+1, r);
        return gcd(left->get(a, b) , right->get(a, b));
    }
};
struct node2
{
    int l, r, sum;
    node2 *left, *right;
    node1 *node;
    node2(int _l, int _r)
    {
        l = _l;
        r = _r;
        sum = 0;
        left = right = NULL;
        node = new node1(1, n);
    }
    void update(int x, int y, int val)
    {
        if (r<x || x<l) return;
        node->update(y, val);
        if (l==r) return;
        int mid=(l+r)>>1;
        if(left==NULL) left = new node2(l, mid);
        if(right==NULL) right = new node2(mid+1, r);
        left->update(x, y, val);
        right->update(x, y, val);
    }
    int get(int x, int y, int u, int v)
    {
        if (r<x || u<l) return 0;
        if (x <= l && r <= u) return node->get(y, v);
        int mid=(l+r)>>1;
        if(left==NULL) left = new node2(l, mid);
        if(right==NULL) right = new node2(mid+1, r);
        return gcd(left->get(x, y, u, v) , right->get(x, y, u, v));
    }
};
node2* root;
void init(int R, int C)
{
    m = R;
    n = C;
    root = new node2(1, R);
}

void update(int P, int Q, long long K)
{
    root->update(P + 1, Q + 1, K);
}

long long calculate(int P, int Q, int U, int V)
{
    return root->get(P + 1, U + 1, Q + 1, V + 1);
}

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