Submission #764900

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
764900	2023-06-24 06:24:24	vjudge1	Roadside Advertisements (NOI17_roadsideadverts)	C++17	100 / 100	174 ms	18840 KiB

roadsideadverts

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#include <bits/stdc++.h>
 
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define all(a) a.begin() , a.end()
#define F first
#define S second
 
using namespace std;
using ll = long long;
 
const int N = 2e5+5 , inf = 2e9 + 7;
const ll INF = 1e18 ,   mod = 1e9+7 ;
int P[N] , D[N] , H[N] , B[N] , pos[N];
vector<int> g[N] ,vec;
int a[N] , b[N] , d[N] , c[N] , NW , t[N*4] , t1[N*4] , u[N*4];
int up[N][20] , n , sz[N];
void upd(int v, int tl, int tr , int pos , int val){
  u[v] = -1;
  if(tl == tr){
    t[v] = val;
    t1[v] = val;
    return;
  }
  int tm = (tl+tr) >> 1;
  if(tm >= pos) upd(v*2,tl,tm,pos,val);
  else upd(v*2+1,tm+1,tr,pos,val);
  t[v] = t[v*2]+t[v*2+1];
  t1[v] = t[v];
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 23 / 23
• Subtask 3: 40 / 40
• Subtask 4: 30 / 30