제출 #1131998

#제출 시각아이디문제언어결과실행 시간메모리
1131998I_FloPPed21Hacker (BOI15_hac)C++20
0 / 100
0 ms328 KiB
#include <iostream> #include <set> using namespace std; const int N=5e5+1; int n,v[2*N]; long long sp[2*N]; void citeste() { cin>>n; for(int i=1;i<=n;i++) { cin>>v[i]; v[i+n]=v[i]; } for(int i=1;i<=2*n;i++) sp[i]=sp[i-1]+v[i]; } long long ans[N]; void rezolva() { //i+sz-1 int sz=(n+1)/2; multiset<long long>mst; for(int i=1;i<=n;i++) { if(i>sz) { long long val=sp[i-1]-sp[i-sz]; mst.erase(mst.find(sp[i-1]-sp[i-sz-1])); } mst.insert(sp[i+sz-1]-sp[i-1]); ans[i]=*mst.begin(); } long long rasp=0; for(int i=1;i<=n;i++) rasp=max(rasp,ans[i]); cout<<rasp; } int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); citeste(); rezolva(); return 0; }
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