Submission #72955

#	Time	Username	Problem	Language	Result	Execution time	Memory
72955		SmsS	Toy Train (IOI17_train)	C++14	5 / 100	13 ms	1064 KiB

train

#include<bits/stdc++.h>
using namespace std;
#define for2(a,b,c) for(int a=b;a<c;a++)
#define ll long long
#include "train.h"

std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v) {
	std::vector<int> res(a.size());
	int n = a.size();
	int m = u.size();
	vector<bool> nxt(n);
	vector<bool> loop(n);
	for2(i,0,m){
		if(u[i] == v[i]) loop[v[i]] = 1;
		else nxt[u[i]] = 1;
	}
	for(int i = n-1; i >= 0; i--){
		if(r[i]){
			if(a[i]){
				if(loop[i]) res[i] = 1;
				else if(i!=n-1) res[i] = res[i+1];
			}else{
				if(nxt[i]) res[i] = res[i+1];
				else res[i] = 1;
			}
		}else{
			if(a[i]){
				if(nxt[i]) res[i] = res[i+1];
				else res[i] = 0;
			}else{
				if(loop[i]) res[i] = 0;
				else res[i] = res[i+1];
			}
		}
	}
	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