Submission #1218745

#	Time	Username	Problem	Language	Result	Execution time	Memory
1218745		mariza	Toy Train (IOI17_train)	C++20	5 / 100	3 ms	840 KiB

train

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

typedef long long ll;
const ll N=5000;

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
    ll n=a.size(), m=u.size();

    bool g[n][2]={};
    for(ll i=0; i<m; i++){
        if(u[i]==v[i]) g[u[i]][0]=1;
        else g[u[i]][1]=1;
    }

	vector<int> ans(n,0);
    for(ll i=n-1; i>=0; i--){
        if(g[i][0] && g[i][1]){
            if(a[i]){
                if(r[i]) ans[i]=1;
                else ans[i]=ans[i+1];
            }
            else{
                if(r[i]) ans[i]=ans[i+1];
                else ans[i]=0;
            }
        }
        else if(g[i][0]){
            if(r[i]) ans[i]=1;
            else ans[i]=0;
        }
        else ans[i]=ans[i+1];
    }
    return ans;
}

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