제출 #1037633

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
1037633	2024-07-29 06:15:34	thinknoexit	장난감 기차 (IOI17_train)	C++17	컴파일 에러	0 ms	0 KiB

train

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#include "train.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
namespace Arezou {
  const int N = 5050;
  vector<int> adj[N], rev[N];
  bool ans[N], vis1[N], vis2[N];
  int n, m;
  void dfs1(int v) {
    for (auto& x : adj[v]) {
      if (!vis1[x]) vis1[x] = 1, dfs1(x);
    }
  }
  void dfs2(int v) {
    for (auto& x : rev[v]) {
      if (!vis2[x]) vis2[x] = 1, dfs2(x);
    }
  }
  vector<int> who_wins(vector<int> a, vector<int> r, vector<int>  _U, vector<int> _V) {
    n = a.size();
    m = _U.size();
    for (int i = 0;i < m;i++) {
      adj[_U[i]].push_back(_V[i]);
      rev[_V[i]].push_back(_U[i]);
    }
    for (int i = 0;i < n;i++) {
      if (!r[i]) continue;
      memset(vis1, 0, sizeof vis1);
      memset(vis2, 0, sizeof vis2);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

train.cpp: In function 'std::vector<int> Borzou::who_wins(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
train.cpp:66:31: error: '::r' has not been declared; did you mean 'Borzou::r'?
   66 |   for (int i = 0;i < n;i++) ::r[i] = r[i], ans[i] = 1;
      |                               ^
      |                               Borzou::r
train.cpp:48:12: note: 'Borzou::r' declared here
   48 |  int n, m, r[N];
      |            ^