This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "game.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
template<class T> bool cmin(T &i, T j) { return i > j ? i=j,true:false; }
template<class T> bool cmax(T &i, T j) { return i < j ? i=j,true:false; }
const int nax = 1e9;
struct node_st2 {
ll ans=0;
node_st2 *left_child=nullptr,*right_child=nullptr;
int l,r;
node_st2(int _l,int _r) : l(_l) , r(_r) {}
void extend() {
if (!left_child && l != r) {
int mid = (l+r)/2;
left_child = new node_st2(l,mid);
right_child = new node_st2(mid+1,r);
}
}
void upd(int p,ll x) {
extend();
ans=gcd(gcd(get_gcd(l,p-1),get_gcd(p+1,r)),x);
if (left_child) {
if (p <= left_child->r) {
left_child->upd(p,x);
} else {
right_child->upd(p,x);
}
}
}
ll get_gcd(int tl,int tr) {
if (tl <= l && r <= tr) {
return ans;
}
if (tr < l || tl > r) {
return 0LL;
}
extend();
return gcd(left_child->get_gcd(tl,tr),right_child->get_gcd(tl,tr));
}
};
struct node_st1 {
node_st2 *root;
node_st1 *left_child=nullptr,*right_child=nullptr;
int l,r;
node_st1(int _l,int _r) {
l = _l;
r = _r;
root = new node_st2(0,nax);
}
void extend() {
if (!left_child && l != r) {
int mid = (l+r)/2;
left_child = new node_st1(l,mid);
right_child = new node_st1(mid+1,r);
}
}
void upd(int x,int y,ll nw) {
extend();
root->upd(y,nw);
if (left_child) {
if (x <= left_child->r) {
left_child->upd(x,y,nw);
} else {
right_child->upd(x,y,nw);
}
}
}
ll get_gcd(int x1,int y1,int x2,int y2) {
if (x1 <= l && r <= x2) {
return root->get_gcd(y1,y2);
}
if (x2 < l || x1 > r) {
return 0LL;
}
extend();
return gcd(left_child->get_gcd(x1,y1,x2,y2),right_child->get_gcd(x1,y1,x2,y2));
}
};
node_st1 *root = new node_st1(0,nax);
void init(int r,int c) {
// AMOGUS
}
void update(int x,int y,ll nw) {
root->upd(x,y,nw);
}
ll calculate(int x1,int y1,int x2,int y2) {
return root->get_gcd(x1,y1,x2,y2);
}
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