oj.uz

답안 #1080040

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1080040 2024-08-29T06:31:42 Z KaleemRazaSyed 기지국 (IOI20_stations) C++17
10 / 100
 622 ms 800 KB 
#include<bits/stdc++.h>
#include "stations.h"

using namespace std;

const int N = 1005;
vector<int> G[N];
int in[N], out[N];
int emit = 0;

void add_edge(int x, int y)
{
  G[x].push_back(y);
  G[y].push_back(x);
}

void dfs(int v, int p = -1)
{
  // cerr << v << endl;
  in[v] = emit++;
  for(int u : G[v])
    if(u != p)
      dfs(u, v);
  out[v] = emit;
}

vector<int> label(int n, int k, vector<int> u, vector<int> v)
{
  for(int i = 0; i < n; i ++)
    G[i].clear();
  
  for(int i = 0; i < u.size(); i ++)
    add_edge(u[i], v[i]);

  dfs(0);
  
  vector<int> l(n);
  for(int i = 0; i < n; i ++)
    {
      l[i] = in[i] * N + out[i];
      assert(out[i] < N);
    }
  return l;
}

int find_next_station(int s, int t, vector<int> c)
{
  int ins = s / N, outs = s % N;
  int in_t = t / N, outt = t % N;
  
  int p = -1;
  for(int i : c)
    {
      
      int ini = i / N, outi = i % N;
      if(ini <= ins && outs <= outi)
	{
	  p = i;
	  continue;
	}
      
      if(ini <= in_t && outt <= outi)
	return i;
    }
  assert(p != -1);
  return p;
}

Compilation message

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:32:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |   for(int i = 0; i < u.size(); i ++)
      |                  ~~^~~~~~~~~~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 594 ms 684 KB Output is correct
2 Correct 500 ms 684 KB Output is correct
3 Correct 411 ms 684 KB Output is correct
4 Correct 3 ms 776 KB Output is correct
5 Correct 2 ms 776 KB Output is correct
6 Correct 2 ms 764 KB Output is correct
7 Correct 402 ms 684 KB Output is correct
8 Correct 622 ms 684 KB Output is correct
9 Correct 474 ms 684 KB Output is correct
10 Correct 427 ms 684 KB Output is correct
11 Correct 2 ms 776 KB Output is correct
12 Correct 3 ms 764 KB Output is correct
13 Correct 2 ms 768 KB Output is correct
14 Correct 2 ms 768 KB Output is correct
15 Correct 2 ms 776 KB Output is correct
16 Correct 389 ms 800 KB Output is correct
17 Correct 369 ms 684 KB Output is correct
18 Correct 359 ms 684 KB Output is correct
19 Correct 365 ms 684 KB Output is correct
20 Correct 359 ms 684 KB Output is correct

Subtask #5
0 / 61.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1 ms 600 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -