oj.uz

답안 #622955

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
622955 2022-08-04T21:26:33 Z Lobo 게임 (APIO22_game) C++17
0 / 100
 107 ms 262144 KB 
#include "game.h"
#include<iostream>
#include<vector>
using namespace std;

#define pb push_back

const int maxn = 5e4+10;

int n, k, dir[maxn][30];
vector<int> g[maxn], gt[maxn];
int ans = 0;

/*
0 -> fora desse nível
1 -> chega em mid 
2 -> mid chega em
*/

void call(int a);
void att(int l, int r, int a, int b, int lv);
void call(int a) {
    for(auto b : g[a]) {
        att(0,k-1,a,b,0);
    }
    for(auto b : gt[a]) {
        att(0,k-1,b,a,0);
    }
}
void att(int l, int r, int a, int b, int lv) {
    if(l > r) return;
    int mid = (l+r)/2;
    if(a == mid) {
        if(dir[b][lv] == 0) {
            dir[b][lv] = 2; //mid chega no b
        }
        else if(dir[b][lv] == 1) {
            ans = 1; // b chega em mid e mid chega em b

        }
        return;
    }
    if(b == mid) {
        if(dir[a][lv] == 0) {
            dir[a][lv] = 1; //a chega em mid
        }
        else if(dir[a][lv] == 2) {
            ans = 1; // mid chega em a e a chega em mid
        }
        return;
    }

    if(dir[a][lv] == 0 && dir[b][lv] == 1) {
        //b chega em mid, a chega em b -> a chega em mid
        dir[a][lv] = 1;
        call(a); //a mudou
        att(l,mid-1,a,b,lv+1); //os dois tão no L
        return;
    }
    if(dir[a][lv] == 2 && dir[b][lv] == 0) {
        //mid chega em a, a chega em b -> mid chega em b
        dir[b][lv] = 2;
        call(b); //b mudou
        att(mid+1,r,a,b,lv+1); //os dois tão no R
        return;
    }
    if(dir[a][lv] == 2 && dir[b][lv] == 1) {
        //mid chega em a, a chega em b, b chega em mid -> mid chega em mid
        ans = 1;
        return;
    }
    if(dir[a][lv] == 1 && dir[a][lv] == 1) {
        att(l,mid-1,a,b,lv+1); //os dois tão no L | BRUTE ASSIM FICA LOG²
        return;
    }
    if(dir[a][lv] == 2 && dir[a][lv] == 2) {
        att(mid+1,r,a,b,lv+1);
        return;
    }

}

void build(int l, int r, int lv) {
    if(l == r) return;
    int mid = (l+r)/2;

    for(int i = l; i < mid; i++) {
        dir[i][lv] = 1;
    }
    for(int i = mid+1; i <= r; i++) {
        dir[i][lv] = 2;
    }

    build(l,mid-1,lv+1);
    build(mid+1,r,lv+1);
}

void init(int N, int K) {
    n = N;
    k = K;
    build(0,k-1,0);
    
}

int add_teleporter(int u, int v) {
    g[u].pb(v);
    gt[v].pb(u);
    if(u == v && u < k) return 1;
    att(0,k-1,u,v,0);
    return ans;
}

Subtask #1
0.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2640 KB Output is correct
2 Runtime error 107 ms 262144 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #2
0.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2640 KB Output is correct
2 Runtime error 107 ms 262144 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2640 KB Output is correct
2 Runtime error 107 ms 262144 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #4
0.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2640 KB Output is correct
2 Runtime error 107 ms 262144 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2640 KB Output is correct
2 Runtime error 107 ms 262144 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -