Submission #739825

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
739825	2023-05-11 11:16:29	MODDI	Lightning Rod (NOI18_lightningrod)	C++14	80 / 100	2017 ms	206348 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<long long, long long> pll;
typedef pair<int,int> pii;
typedef vector<long long> vl;
typedef vector<int> vi;
int n;
vector<pii> arr;
// abs(xi - xj) <= yi - yj -> we place on i
// let xi >= xj
// yj - xj <= yi - xi
// let xi < xj
// xj + yj <= yi + xi
int tree_levo[4 * 200100], tree_desno[4 * 200100];
// tree_levo - check left side
// tree_desno - check right side;
void build(int node, int l, int r){
  if(l == r){
    tree_levo[node] = -1e9;
    tree_desno[node] = -1e9;
  }
  else{
    int mid = (l + r) / 2;
    build(node*2, l, mid);
    build(node*2+1, mid+1, r);
    tree_levo[node] = max(tree_levo[node*2], tree_levo[node*2+1]);
    tree_desno[node] = max(tree_desno[node*2], tree_desno[node*2+1]);
 
 
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• Subtask 1: 4 / 4
• Subtask 2: 7 / 7
• Subtask 3: 12 / 12
• Subtask 4: 21 / 21
• Subtask 5: 26 / 26
• Subtask 6: 10 / 10
• Subtask 7: 0 / 20