Submission #384158

#	Time	Username	Problem	Language	Result	Execution time	Memory
384158		alishahali1382	Game (IOI13_game)	C++14	63 / 100	1700 ms	236652 KiB

game

#include "game.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

#define debug(x) {cerr<<#x<<"="<<x<<"\n";}
#define debug2(x, y) {cerr<<#x<<", "<<#y<<" = "<<x<<", "<<y<<"\n";}
#define debugp(p) {cerr<<#p" = {"<<p.first<<", "<<p.second<<"}\n";}
#define pb push_back
#define all(x) x.begin(), x.end()

ll gcd2(ll X, ll Y) {
    ll tmp;
    while (X != Y && Y != 0) {
        tmp = X;
        X = Y;
        Y = tmp % Y;
    }
    return X;
}

const int SEGSZ=7000000, SEGSZ2=300000;

ll seg[SEGSZ], ans;
int L[SEGSZ], R[SEGSZ], ts;
int Set(int id, int tl, int tr, int pos, ll val){
    if (!id) id=++ts;
    if (tr-tl==1){
        seg[id]=val;
        return id;
    }
    int mid=(tl+tr)>>1;
    if (pos<mid) L[id]=Set(L[id], tl, mid, pos, val);
    else R[id]=Set(R[id], mid, tr, pos, val);
    seg[id]=gcd2(seg[L[id]], seg[R[id]]);
    return id;
}
void Get(int id, int tl, int tr, int l, int r, ll &ans){
    if (r<=tl || tr<=l || !id) return ;
    if (l<=tl && tr<=r){
        // debug(seg[id])
        ans=gcd2(ans, seg[id]); // overall log(10^18) for single query of problem
        return ;
    }
    int mid=(tl+tr)>>1;
    Get(L[id], tl, mid, l, r, ans);
    Get(R[id], mid, tr, l, r, ans);
}

int n, m, root;
int seg2[SEGSZ2], L2[SEGSZ2], R2[SEGSZ2], ts2;
int Set2(int id, int tl, int tr, int x, int y, ll val){
    if (!id) id=++ts2;
    // cerr<<"update "<<val<<" in "<<tl<<" "<<tr<<"\n";
    if (tr-tl==1) {
        seg2[id]=Set(seg2[id], 0, m, y, val);
        return id;
    }
    int mid=(tl+tr)>>1;
    if (x<mid) L2[id]=Set2(L2[id], tl, mid, x, y, val);
    else R2[id]=Set2(R2[id], mid, tr, x, y, val);
    // debug2(L2[id], R2[id])
    // debug2(seg[seg2[L2[id]]], seg[seg2[R2[id]]])
    ll res=0;
    Get(seg2[L2[id]], 0, m, y, y+1, res);
    Get(seg2[R2[id]], 0, m, y, y+1, res);
    // debug(res)
    seg2[id]=Set(seg2[id], 0, m, y, res);
    return id;
}
void Get2(int id, int tl, int tr, int l1, int l2, int r1, int r2){
    if (r1<=tl || tr<=l1 || !id) return ;
    if (l1<=tl && tr<=r1){
        // debug2(tl, tr)
        Get(seg2[id], 0, m, l2, r2, ans);
        return ;
    }
    int mid=(tl+tr)>>1;
    Get2(L2[id], tl, mid, l1, l2, r1, r2);
    Get2(R2[id], mid, tr, l1, l2, r1, r2);
}

void init(int nn, int mm) {
    n=nn;
    m=mm;
}

void update(int P, int Q, ll K) {
    root=Set2(root, 0, n, P, Q, K);
}

ll calculate(int P, int Q, int U, int V) {
    ans=0;
    Get2(root, 0, n, P, Q, U+1, V+1);
    return ans;
}
/*
3 3 4
2 0 1 2 2
1 1 0 13
1 2 2 1
2 0 0 2 2

*/

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