Submission #966647

#	Time	Username	Problem	Language	Result	Execution time	Memory
966647		Amr	Toy Train (IOI17_train)	C++17	0 / 100	6 ms	1088 KiB

train

#include "train.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define sz size()
#define F first
#define S second
const int N = 1e5+2;
ll same[N], to[N];
std::vector<int> who_wins(std::vector<int> a, std::vector<int> r, std::vector<int> u, std::vector<int> v) {
    ll n = a.sz;
    ll m = u.sz;
    vector<int> ans(n);
    for(int i = 0; i < m; i++)
    {
        ll x = u[i] , y = v[i];
        if(x==y) same[x] = 1;
        if(y==x+1) to[x] = 1;
    }
    for(int i = n-1; i >= 0; i--)
    {
        if(a[i]==1)
        {
            if((same[i]&&r[i])||(i<n-1&&ans[i+1]&&to[i])) ans[i] = 1;
            else ans[i] = 0;
        }
        else
        {
            if(r[i]) ans[i] = 1;
            else
            {
                if(same[i]) ans[i] = 0;
                else ans[i] = ans[i+1];
            }
        }
    }
	return ans;
}

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