Submission #790243

#	Time	Username	Problem	Language	Result	Execution time	Memory
790243		Valaki2	Toy Train (IOI17_train)	C++14	5 / 100	5 ms	856 KiB

train

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

int n, m;

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
	n = a.size();
	m = u.size();
	vector<bool> to_next(n, false), to_self(n, false);
	for(int i = 0; i < m; i++) {
		if(u[i] == v[i]) {
			to_self[u[i]] = true;
		} else {
			to_next[u[i]] = true;
		}
	}
	vector<int> res(n);
	for(int i = n - 1; i >= 0; i--) {
		if(to_self[i] && !to_next[i]) {
			res[i] = r[i]; // loop
		} else if(!to_self[i] && to_next[i]) {
			res[i] = res[i + 1]; // step
		} else {
			if(a[i] == r[i]) {
				res[i] = a[i]; // loop good for owner
			} else {
				res[i] = res[i + 1]; // owner decides to step
			}
		}
	}
	return res;
}

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