Submission #609706

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
609706	2022-07-27 19:31:48	penguinhacker	Capital City (JOI20_capital_city)	C++17	41 / 100	962 ms	159568 KiB

capital_city

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#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define ar array
 
const int mxN=2e5, MX=1e6;
int n, k, c[mxN], n2;
int d[mxN], s[mxN], p[mxN], hd[mxN], tin[mxN], tin2[mxN];
int who[mxN], cnt[mxN];
vector<int> oc[mxN], adj1[mxN], adj2[MX], adj3[MX], st, nodes;
bool vis[MX], out[MX];
 
void dfs1(int u=0) {
  s[u]=1;
  for (int& v : adj1[u]) {
    adj1[v].erase(find(adj1[v].begin(), adj1[v].end(), u));
    d[v]=d[u]+1, p[v]=u;
    dfs1(v);
    s[u]+=s[v];
    if (s[v]>s[adj1[u][0]])
      swap(v, adj1[u][0]);
  }
}
void dfs2(int u=0, int h=0) {
  static int timer=0;
  hd[u]=h, tin[u]=timer++, tin2[tin[u]]=u;
  if (adj1[u].empty())
    return;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

capital_city.cpp: In function 'void dfs2(int, int)':
capital_city.cpp:32:17: 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=1; i<adj1[u].size(); ++i)
      |                ~^~~~~~~~~~~~~~~
capital_city.cpp: In function 'int main()':
capital_city.cpp:120:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  120 |   for (int j=1; j<oc[i].size(); ++j)
      |                 ~^~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 10 / 10
• Subtask 3: 30 / 30
• Subtask 4: 0 / 59