Submission #922444

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
922444	2024-02-05 14:04:26	SNP011	Dynamic Diameter (CEOI19_diameter)	C++17	7 / 100	501 ms	73308 KiB

diameter

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#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<long long, long long>
#define pb push_back
const int maxn = 4e5 + 5;
int h[maxn], dp[5][4 * maxn], lastans;
int lazy[4 * maxn], st[maxn], fn[maxn];
vector<pii> adj[maxn];
vector<int> discovery;
map<pii, int> we;
void dfs(int v, int par = 0) {
  st[v] = discovery.size();
  discovery.pb(h[v]);
  for (auto[w, u]: adj[v]) {
    if (u != par) {
      h[u] = h[v] + w;
      dfs(u, v);
      discovery.pb(h[v]);
    }
  }
  fn[v] = discovery.size() - 1;
}
void updateDP(int id, int L, int R) {
  int mid = (R + L) >> 1;
 
 
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Compilation message (stderr)

diameter.cpp: In member function 'void segment::init(long long int, long long int, long long int)':
diameter.cpp:51:25: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   51 |    if (discovery.size() >= L) {
      |        ~~~~~~~~~~~~~~~~~^~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 13
• Subtask 3: 7 / 7
• Subtask 4: 0 / 18
• Subtask 5: 0 / 24
• Subtask 6: 0 / 27