Submission #425707

#	Time	Username	Problem	Language	Result	Execution time	Memory
425707		MOUF_MAHMALAT	Toy Train (IOI17_train)	C++14	Compilation error	0 ms	0 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
        ans.push_back(ans.back());
    }
    reverse(all(ans));
    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++)
      |                 ~^~~~~~~~~~
train.cpp:28:13: error: 'all' was not declared in this scope; did you mean 'll'?
   28 |     reverse(all(ans));
      |             ^~~
      |             ll