제출 #411521

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
411521	2021-05-25 13:05:09	AugustinasJucas	Regions (IOI09_regions)	C++14	65 / 100	8090 ms	61292 KiB

regions

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#include <bits/stdc++.h>
#pragma GCC optimize("O2")
using namespace std;
const int dydis = 2e5 + 10;
int n, r, q;
vector<int> dideli; // regionai
vector<int> regs[dydis];
int tevas[dydis];
vector<int> gr[dydis];
map<pair<int, int>, long long > rem;
int sm[dydis];
int val[dydis];
int kam[dydis];
int sq;
int dbInd = 0;
int kelint[dydis];
int enter[dydis], leave[dydis];
long long dideliuMem1[450][20001], dideliuMem2[450][20001];
 
void dfs1(int v, int came){
  enter[v] = dbInd++;
  for(auto x : gr[v]){
    if(x == came) continue;
    dfs1(x, v);
  }
  leave[v] = dbInd;
}
bool isAnc(int a, int b){
  return enter[a] <= enter[b] && leave[b] <= leave[a];
}
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 50 / 85