제출 #764900

#제출 시각UTC-0아이디문제언어결과실행 시간메모리
7649002023-06-24 06:24:24vjudge1Roadside Advertisements (NOI17_roadsideadverts)C++17
100 / 100
174 ms18840 KiB
#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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