Submission #979996

#	Time	Username	Problem	Language	Result	Execution time	Memory
979996		avita	Game (APIO22_game)	C++17	100 / 100	1261 ms	64520 KiB

game

#include "game.h"
#include<bits/stdc++.h>
using namespace std;
 
const int maxn=300005;
int n, k, ok, l[maxn], r[maxn], layer[maxn];
vector <int> A[maxn], At[maxn];
 
void propagate(int u)
{
    if (ok) return;
    if (r[u]<=l[u]) return ok=1, void();
    int j=__lg(l[u]^r[u]);
    if (layer[u]>j) layer[u]=j; 
    else return;
    for (int v:A[u]) l[v]=max(l[v], l[u]), propagate(v);
    for (int v:At[u]) r[v]=min(r[v], r[u]), propagate(v);
}
 
int add_teleporter(int u, int v)
{
    A[u].push_back(v), At[v].push_back(u);
    l[v]=max(l[v], max(l[u], u<k?u:-1)), propagate(v);
    r[u]=min(r[u], min(r[v], v<k?v:k)), propagate(u);
    return ok;
}
 
void init(int N, int K)
{
    n=N, k=K;
    for (int i=0; i<k; i++) l[i]=i, r[i]=i+1;
    for (int i=k; i<n; i++) l[i]=-1, r[i]=k;
    for (int i=0; i<n; i++) layer[i]=__lg(l[i]^r[i]);
}
/*int main()
{
    
}*/

• Subtask 1: 2 / 2
• Subtask 2: 10 / 10
• Subtask 3: 18 / 18
• Subtask 4: 30 / 30
• Subtask 5: 40 / 40