oj.uz

Submission #426487

# Submission time Handle Problem Language Result Execution time Memory
426487 2021-06-14T05:18:28 Z 조영욱(#7645) City (JOI17_city) C++14
8 / 100
 212 ms 27152 KB 
#include "Encoder.h"
#include <bits/stdc++.h>
using namespace std;

int sz[250000];
int ind[250000];
vector<int> adj[250000];
int f=0;

void dfs(int v,int prev){
    ind[v]=f++;
    sz[v]=1;
    for(int i=0;i<adj[v].size();i++) {
        int nt=adj[v][i];
        if (nt==prev){
            continue;
        }
        dfs(nt,v);
        sz[v]+=sz[nt];
    }
}

void Encode(int n, int A[], int B[])
{
    for(int i=0;i<n-1;i++) {
        adj[A[i]].push_back(B[i]);
        adj[B[i]].push_back(A[i]);
    }
    dfs(0,-1);
	for (int i = 0; i < n; ++i) {
		Code(i, sz[i]*250000+ind[i]);
	}
}

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

void InitDevice()
{
}

int Answer(long long s,long long t)
{
    int ssz=s/250000;
    int sind=s%250000;
    int tsz=t/250000;
    int tind=t%250000;
    if (sind>=tind&&sind<tind+tsz) {
        return 0;
    }
    if (tind>=sind&&tind<sind+ssz) {
        return 1;
    }
	return 2;
}

Compilation message

Encoder.cpp: In function 'void dfs(int, int)':
Encoder.cpp:13:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for(int i=0;i<adj[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 6396 KB Output is correct
2 Correct 4 ms 6496 KB Output is correct
3 Correct 5 ms 6396 KB Output is correct
4 Correct 5 ms 6400 KB Output is correct
5 Correct 5 ms 6400 KB Output is correct
6 Correct 4 ms 6408 KB Output is correct
7 Correct 5 ms 6400 KB Output is correct
8 Correct 5 ms 6400 KB Output is correct
9 Correct 6 ms 6476 KB Output is correct
10 Correct 6 ms 6512 KB Output is correct
11 Correct 4 ms 6408 KB Output is correct
12 Correct 5 ms 6400 KB Output is correct

Subtask #2
0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 210 ms 21976 KB Output is correct - L = 175000000
2 Correct 212 ms 21808 KB Output is correct - L = 174750000
3 Correct 206 ms 22000 KB Output is correct - L = 175000000
4 Correct 212 ms 21920 KB Output is correct - L = 175000000
5 Incorrect 212 ms 27152 KB Wrong Answer [3]
6 Halted 0 ms 0 KB -