Submission #813192

#	Time	Username	Problem	Language	Result	Execution time	Memory
813192		Khizri	Game (IOI13_game)	C++17	0 / 100	497 ms	256000 KiB

game

#include "game.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define F first
#define S second
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
const int mxn=2001;
int a,b;
ll tree[4*mxn][4*mxn],arr[mxn][mxn];
long long gcd(long long X, long long Y) {
    long long tmp;
    while (X != Y && Y != 0) {
        tmp = X;
        X = Y;
        Y = tmp % Y;
    }
    return X;
}
struct st{
    //vector<vector<ll>>tree;
    //vector<vector<ll>>arr;
    int n,m;
    void give_size(int x,int y){
        n=x,m=y;
        //tree.resize(4*n+5,vector<ll>(4*m+5));
        //arr.resize(n+5,vector<ll>(m+5));
    }
    void buildy(int &nodex,int &lx,int &rx,int nodey,int ly,int ry){
        if(ly==ry){
            if(lx==rx){
                tree[nodex][nodey]=arr[lx][ly];
            }
            else{
                tree[nodex][nodey]=gcd(tree[2*nodex][nodey],tree[2*nodex+1][nodey]);
            }
        }
        else{
            int my=(ly+ry)/2;
            buildy(nodex,lx,rx,2*nodey,ly,my);
            buildy(nodex,lx,rx,2*nodey+1,my+1,ry);
            tree[nodex][nodey]=gcd(tree[nodex][2*nodey],tree[nodex][2*nodey+1]);
        }
    }
    void buildx(int node,int l,int r){
        if(l!=r){
            int mx=(l+r)/2;
            buildx(2*node,l,mx);
            buildx(2*node+1,mx+1,r);
        }
        buildy(node,l,r,1,l,m);
    }
    void updatey(int &nodex,int &lx,int &rx,int nodey,int ly,int ry,int &x,int &y,ll &val){
        if(ly==ry){
            if(lx==rx){
                tree[nodex][nodey]=val;
            }
            else{
                tree[nodex][nodey]=gcd(tree[nodex*2][nodey],tree[nodex*2+1][nodey]);
            }
        }
        else{
            int my=(ly+ry)/2;
            if(y<=my){
                updatey(nodex,lx,rx,2*nodey,ly,my,x,y,val);
            }
            else{
                updatey(nodex,lx,rx,2*nodey+1,my+1,ry,x,y,val);
            }
            tree[nodex][nodey]=gcd(tree[nodex][2*nodey],tree[nodex][2*nodey+1]);
        }
    }
    void updatex(int node,int l,int r,int &x,int &y,ll &val){
        if(l!=r){
            int mx=(l+r)/2;
            if(x<=mx){
                updatex(2*node,l,mx,x,y,val);
            }
            else{
                updatex(2*node+1,mx+1,r,x,y,val);
            }
        }
        updatey(node,l,r,1,1,m,x,y,val);
    }
    ll query_y(int &nodex,int nodey,int l,int r,int &ql,int &qr){
        if(l>r) return 0;
        if(l>qr||r<ql) return 0;
        if(ql<=l&&r<=qr) return tree[nodex][nodey];
        int my=(l+r)/2;
        ll left=query_y(nodex,nodey*2,l,my,ql,qr);
        ll right=query_y(nodex,nodey*2+1,my+1,r,ql,qr);
        return gcd(left,right);
    }
    ll query_x(int node,int l,int r,int &ql,int &qr,int &qly,int &qry){
        if(l>r) return 0;
        if(l>qr||r<ql) return 0;
        if(ql<=l&&r<=qr){
            return query_y(node,1,1,m,qly,qry);
        }
        int mx=(l+r)/2;
        ll left=query_x(2*node,l,mx,ql,qr,qly,qry);
        ll right=query_x(2*node+1,mx+1,r,ql,qr,qly,qry);
        return gcd(left,right);
    }
};
st tree1;
void init(int R, int C) {
    a=R,b=C;
    tree1.give_size(R,C);
    tree1.buildx(1,1,a);
}

void update(int P, int Q, long long K) {
    P++,Q++;
    tree1.updatex(1,1,a,P,Q,K);
}

long long calculate(int P, int Q, int U, int V) {
    P++,U++,Q++,V++;
    return tree1.query_x(1,1,a,P,U,Q,V);
}
/*
g++ game.cpp grader.c ; .\a.exe
2 3 9
1 0 0 20
1 0 2 15
1 1 1 12
2 0 0 0 2
2 0 0 1 1
1 0 1 6
1 1 1 14
2 0 0 0 2
2 0 0 1 1
*/

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