Submission #733414

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
733414	2023-04-30 16:41:23	penguin133	Regions (IOI09_regions)	C++17	100 / 100	4901 ms	66324 KiB

regions

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#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
int n, r, q;
map <int, int> cur;
vector <int> adj[200005];
int A[200005];
map <int, int> fin[25005];
int S[200005], E[200005];
const int sz = 500;
int big[25005];
vector <int> stuf[25005], stuf2[25005];
void dfs(int x, int par){
  if(big[A[x]] >= 500)cur[A[x]]++;
  for(auto [i, j] : cur)fin[i][A[x]] += j;
  for(auto i : adj[x]){
    if(i == par)continue;
    dfs(i, x);
  }
  if(big[A[x]] >= 500)cur[A[x]]--;
 
 
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

regions.cpp:81:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   81 | main(){
      | ^~~~

• Subtask 1: 15 / 15
• Subtask 2: 85 / 85