Submission #18947

#	Time	Username	Problem	Language	Result	Execution time	Memory
18947		ggoh	Game (IOI13_game)	C++98	0 / 100	3 ms	1984 KiB

game

#include "game.h"
#include<cstdio>
#include<algorithm>
#include<vector>
int a,b,X,t;
struct A{
    int s,e,left,right,ynum;
    long long val;
};
std::vector<A>xTree,yTree;
long long gcd2(long long xx,long long yy){
    if(yy==0)return xx;
    return gcd2(yy,xx%yy);
}
void yup(int num,int xco,int yco,long long v)
{
    int s1=yTree[num].s,e1=yTree[num].e;
    if(s1==e1){
        yTree[num].val=v;
        return ;
    }
    if((s1+e1)/2>=yco)
    {
        if(yTree[num].left==-1)
        {
            yTree[num].left=yTree.size();
            yTree.push_back({s1,(s1+e1)/2,-1,-1,-1,0});
        }
        yup(yTree[num].left,xco,yco,v);
    }
    else
    {
        if(yTree[num].right==-1)
        {
            yTree[num].right=yTree.size();
            yTree.push_back({(s1+e1)/2+1,e1,-1,-1,-1,0});
        }
        yup(yTree[num].right,xco,yco,v);
    }
    long long l=0,r=0;
    if(yTree[num].left>=0)l=yTree[yTree[num].left].val;
    if(yTree[num].right>=0)r=yTree[yTree[num].right].val;
    yTree[num].val=gcd2(l,r);
}
void xup(int num,int xco,int yco,long long v)
{
    if(xTree[num].ynum==-1)
    {
        xTree[num].ynum=yTree.size();
        yTree.push_back({0,X,-1,-1,-1,0});
    }
    yup(xTree[num].ynum,xco,yco,v);
    if(xTree[num].s==xTree[num].e)return ;
    int s1=xTree[num].s,e1=xTree[num].e;
    if((s1+e1)/2>=xco)
    {
        if(xTree[num].left==-1)
        {
            xTree[num].left=xTree.size();
            xTree.push_back({s1,(s1+e1)/2,-1,-1,-1,0});
        }
        xup(xTree[num].left,xco,yco,v);
    }
    else
    {
        if(xTree[num].right==-1)
        {
            xTree[num].right=xTree.size();
            xTree.push_back({(s1+e1)/2+1,e1,-1,-1,-1,0});
        }
        xup(xTree[num].right,xco,yco,v);
    }
}
long long yans(int num,int px,int qx,int py,int qy)
{
    if(yTree[num].s>qy||yTree[num].e<py)return 0ll;
    if(py<=yTree[num].s&&yTree[num].e<=qy)return yTree[num].val;
    long long l=0,r=0;
    if(yTree[num].left>=0)l=yans(yTree[num].left,px,qx,py,qy);
    if(yTree[num].right>=0)r=yans(yTree[num].right,px,qx,py,qy);
    return gcd2(l,r);
}
long long xans(int num,int px,int qx,int py,int qy)
{
    if(xTree[num].s>qx||xTree[num].e<px)return 0ll;
    if(px<=xTree[num].s&&xTree[num].e<=qx)
    {
        if(xTree[num].ynum>=0)return yans(xTree[num].ynum,px,qx,py,qy);
        else return 0ll;
    }
    long long l=0,r=0;
    if(xTree[num].left>=0)l=xans(xTree[num].left,px,qx,py,qy);
    if(xTree[num].right>=0)r=xans(xTree[num].right,px,qx,py,qy);
    return gcd2(l,r);
}
void init(int R, int C)
{
    a=R;b=C;X=1e9;
    xTree.push_back({0,X,-1,-1,-1,0});
}
void update(int P, int Q, long long K)
{
    xup(0,P,Q,K);
}
long long calculate (int P, int Q, int U, int V)
{
    return xans(0,P,U,Q,V);
}

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