Submission #618910

#	Time	Username	Problem	Language	Result	Execution time	Memory
618910		SlavicG	Dungeons Game (IOI21_dungeons)	C++17	0 / 100	1 ms	1152 KiB

dungeons

#include "dungeons.h"
#include "bits/stdc++.h"
using namespace std;

using ll = long long;
const int N = 4e5 + 10, K = 30;
ll jump[N][K], jump2[N][K], finish;
ll sum[N][K], S[N], P[N], W[N], L[N];
void init(int n, vector<int> s, vector<int> p, vector<int> w, vector<int> l) {
    finish = n;
    jump[n][0] = n;
	for(int i = 0; i < n; ++i) {
        S[i] = s[i];
        P[i] = p[i];
        W[i] = w[i];
        L[i] = l[i];
        jump[i][0] = l[i];
        sum[i][0] = p[i];
        jump2[i][0] = w[i];
	}
	for(int j = 1; j < K; ++j) {
        for(int i = 0; i <= n; ++i) {
            jump[i][j] = jump[jump[i][j - 1]][j - 1];
            jump2[i][j] = jump2[jump2[i][j - 1]][j - 1];
            sum[i][j] = sum[i][j - 1] + sum[jump[i][j - 1]][j - 1];
        }
	}
}

long long simulate(int x, int z) {
    ll w = z;
    for(ll j = K - 1; j >= 0; --j) {
        if(w + sum[x][j] < S[0] && jump[x][j] != finish) {
            w += sum[x][j];
            x = jump[x][j];
        }
    }
    if(w < S[0]) {
        w += sum[x][0];
        x = jump[x][0];
    }
    ll steps = 0;
    for(ll j = K - 1; j >= 0; --j) {
        if(jump2[x][j] != finish) {
            steps += (1LL << j);
            x = jump2[x][j];
        }
    }
    if(x != finish) ++steps;
    w += 1LL * steps * S[0];
    return w;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 26
• Subtask 3: 0 / 13
• Subtask 4: 0 / 12
• Subtask 5: 0 / 27
• Subtask 6: 0 / 11