Submission #315321

#	Time	Username	Problem	Language	Result	Execution time	Memory
315321		NintsiChkhaidze	City (JOI17_city)	C++14	8 / 100	230 ms	43248 KiB

Encoder

#include "Encoder.h"
#include <bits/stdc++.h>
#define n 250000
#define pb push_back
using namespace std;

int ind,in[n+5],out[n+5];
vector <int> v[n+5];
 
void dfs(int x,int pr){
    in[x] = ++ind;
    for (int j = 0; j < v[x].size(); j++){
        int to = v[x][j];
        if (to == pr) continue;
        dfs(to,x);
    }
    
    out[x] = ind;
}
 
void Encode(int N, int A[], int B[])
{
    for (int i=0;i<N;i++)
        v[A[i]].pb(B[i]),v[B[i]].pb(A[i]);
    ind=-1;
    dfs(0,0);
    for (int i = 0; i < N; ++i)
        Code(i, in[i]*n + out[i]);
}

Device

#include "Device.h"
#include <bits/stdc++.h>
#define n 250000
using namespace std;

void InitDevice(){
    
}
 
int Answer(long long S, long long T){
    int Sout = S%n,Tout = T%n,Sin = (S - Sout)/n,Tin = (T - Tout)/n;
    if (Sin < Tin && Sout >= Tout) return 1;
    else
    if (Tin < Sin && Tout >= Sout) return 0;
    else return 2;
}

Compilation message (stderr)

Encoder.cpp: In function 'void dfs(int, int)':
Encoder.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for (int j = 0; j < v[x].size(); j++){
      |                     ~~^~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 0 / 92