제출 #242823

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
242823	2020-06-29 10:53:37	moonrabbit2	Feast (NOI19_feast)	C++17	100 / 100	417 ms	232220 KiB

feast

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#include <bits/stdc++.h>
#define fi first
#define se second
using namespace std;
typedef long long ll;
typedef long double db;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<db,db> pdb;
typedef tuple<int,int,int> tii;
typedef tuple<ll,ll,ll> tll;
typedef tuple<int,int,int,int> ti4;
typedef vector<vector<ll>> mat;
const ll mod=1e9+7,inf=1e18;
const int N=3e5+5,M=2e5+5,K=1e7+5;
int n,k;
ll a[N],ans;
struct SEG{
  struct node{
    tll Lmx,Rmx,Sum,Mx;
    tll Lmx2,Rmx2,Sum2,Mx2;
    void Swap(){
      swap(Lmx,Lmx2); swap(Rmx,Rmx2); swap(Sum,Sum2); swap(Mx,Mx2);
    }
    node operator +(node n1){
      node n;
      n.Lmx=max(Lmx,{get<0>(Sum)+get<0>(n1.Lmx),get<1>(Sum),get<2>(n1.Lmx)});
      n.Rmx=max(n1.Rmx,{get<0>(Rmx)+get<0>(n1.Sum),get<1>(Rmx),get<2>(n1.Sum)});
      n.Sum={get<0>(Sum)+get<0>(n1.Sum),get<1>(Sum),get<2>(n1.Sum)};
      n.Mx=max({Mx,n1.Mx,{get<0>(Rmx)+get<0>(n1.Lmx),get<1>(Rmx),get<2>(n1.Lmx)}});
 
 
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