Submission #425716

#	Time	Username	Problem	Language	Result	Execution time	Memory
425716		MOUF_MAHMALAT	Toy Train (IOI17_train)	C++14	0 / 100	8 ms	1868 KiB

train

#include "train.h"
#include<bits/stdc++.h>
using namespace std;
typedef int ll;
vector<vector<ll> >v;
ll n;
bool b[5009],c[5009];
vector<int> who_wins(vector<int> A, vector<int> R, vector<int> from, vector<int> to)
{
    n=A.size();
    v.resize(n);
    for(ll i=0; i<to.size(); i++)
        v[from[i]].push_back(to[i]);
    for(ll i=0; i<n; i++)
        b[i]=A[i],c[i]=R[i];
    vector<ll>ans;
    for(ll i=n-1; i>=0; i--)
    {
        bool is=0;
        for(auto z:v[i])
            if(z==i)
                is=1;
        if((is&&c[i]&&b[i])||(is&&c[i]&&v[i].size()==1))
            ans.push_back(1);
        else if(c[i]==0&&is&&v[i].size()==1)
            ans.push_back(0);
        else
            ans.push_back(ans.back());
    }
    reverse(ans.begin(),ans.end());
    return ans;
}

Compilation message (stderr)

train.cpp: In function 'std::vector<int> who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:12:18: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for(ll i=0; i<to.size(); i++)
      |                 ~^~~~~~~~~~

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