제출 #883344

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
883344	2023-12-05 07:56:39	serifefedartar	Regions (IOI09_regions)	C++17	30 / 100	1357 ms	50600 KiB

regions

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(0);cin.tie(0);
#define s second
#define f first
typedef long long ll;
const ll MOD = 1e9 + 9;
const ll LOGN = 21;
const ll MAXN = 2e5 +  100;
vector<vector<int>> graph;
int reg[MAXN], dp[505][505];
vector<int> cnt[MAXN], Rin[25100], Rout[25100];
map<pair<int,int>, pair<int,bool>> memo;
void dfs(int node, int parent) {
  cnt[node][reg[node]]++;
  for (int reg_other = 1; reg_other <= 500; reg_other++)
    dp[reg_other][reg[node]] += cnt[node][reg_other];
  for (auto u : graph[node]) {
    swap(cnt[u], cnt[node]);
    dfs(u, node);
  }
  cnt[node][reg[node]]--;
  swap(cnt[parent], cnt[node]);
}
  
int T = 0;
int tin[MAXN], tout[MAXN];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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