Submission #601012

#	Time	Username	Problem	Language	Result	Execution time	Memory
601012		Valaki2	Dungeons Game (IOI21_dungeons)	C++17	13 / 100	239 ms	33368 KiB

dungeons

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

#define n N
#define s S
#define p P
#define w W
#define l L

#define int long long
#define pb push_back

const int logn = 31;

int n;
vector<int> win_str, lose_str, win_pos, lose_pos;
int k;
vector<vector<int> > lift_str;
vector<vector<int> > lift_pos;
vector<int> cost;

void solve() {
    k = win_str[0];
    lift_str = lift_pos = vector<vector<int> > (1 + n, vector<int> (logn, 0));
    for(int i = 0; i <= n; i++) {
        lift_str[i][0] = lose_str[i];
        lift_pos[i][0] = lose_pos[i];
    }
    for(int j = 1; j < logn; j++) {
        for(int i = 0; i <= n; i++) {
            lift_str[i][j] = lift_str[i][j - 1] + lift_str[lift_pos[i][j - 1]][j - 1];
            lift_pos[i][j] = lift_pos[lift_pos[i][j - 1]][j - 1];
        }
    }
    cost.assign(1 + n, 0);
    for(int i = n - 1; i >= 0; i--) {
        cost[i] = win_str[i] + cost[win_pos[i]];
    }
}

int query(int pos, int strength) {
    if(strength >= k) {
        return strength + cost[pos];
    }
    for(int j = logn - 1; j >= 0; j--) {
        if(strength + lift_str[pos][j] < k) {
            strength += lift_str[pos][j];
            pos = lift_pos[pos][j];
        }
    }
    strength += lift_str[pos][0];
    pos = lift_pos[pos][0];
    return strength + cost[pos];
}

#undef n
#undef s
#undef p
#undef w
#undef l
void init(signed n, vector<signed> s, vector<signed> p, vector<signed> w, vector<signed> l) {
	N = n;
	win_str = lose_str = win_pos = lose_pos = (vector<int> (n + 1, 0));
	for(int i = 0; i < n; i++) {
        win_str[i] = s[i];
        lose_str[i] = p[i];
        win_pos[i] = w[i];
        lose_pos[i] = l[i];
	}
	win_str[n] = 0;
	lose_str[n] = 0;
	win_pos[n] = n;
	lose_pos[n] = n;
	solve();
}

int simulate(signed x, signed z) {
	return query(x, z);
}

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