Submission #575305

#	Time	Username	Problem	Language	Result	Execution time	Memory
575305		KoD	Toy Train (IOI17_train)	C++17	5 / 100	6 ms	852 KiB

train

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

using ll = long long;

using std::vector;
using std::array;
using std::pair;
using std::tuple;

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
    const int n = a.size();
    const int m = u.size();
    vector<char> loop(n), next(n);
    for (int i = 0; i < m; ++i) {
        if (u[i] == v[i]) {
            loop[u[i]] = true;
        } else {
            next[u[i]] = true;
        }
    }
    vector<int> ret(n);
    for (int i = n - 1; i >= 0; --i) {
        if (a[i]) {
            ret[i] = (loop[i] and r[i]) or (next[i] and ret[i + 1]);
        } else {
            ret[i] = !((loop[i] and !r[i]) or (next[i] and !ret[i + 1]));
        }
    }
    return ret;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 11
• Subtask 4: 0 / 11
• Subtask 5: 0 / 12
• Subtask 6: 0 / 51