Submission #598576

#	Time	Username	Problem	Language	Result	Execution time	Memory
598576		Lucpp	Toy Train (IOI17_train)	C++17	5 / 100	7 ms	620 KiB

train

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

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> U, vector<int> V) {
    int n = (int)a.size();
    vector<bool> self(n), nxt(n);
    for(int i = 0; i < (int)U.size(); i++) if(U[i] == V[i]) self[U[i]] = true; else nxt[U[i]] = true;
    vector<int> dp(n);
    dp[n-1] = r[n-1];
    for(int i = n-2; i >= 0; i--){
        if(!nxt[i]) dp[i] = r[i];
        else if(a[i] == 1){
            dp[i] = dp[i+1] || (self[i] && r[i]);
        }
        else{
            dp[i] = dp[i+1] && !(self[i] && !r[i]);
        }
    }
    return dp;
}

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