제출 #1155108

#제출 시각아이디문제언어결과실행 시간메모리
1155108andrewpTraffic (IOI10_traffic)C++20
50 / 100
167 ms43364 KiB
#include <bits/stdc++.h> #include "traffic.h" using namespace std; #define ll long long #define pb push_back #define pii pair<int,int> #define all(x) x.begin(), x.end() #define rall(x) x.rbegin(), x.rend() #define sz(a) ((int)a.size()) const int N=1e6+10; ll n, ps[N], ss[N]; ll pss[N], sss[N]; int LocateCentre(int N_,int P[],int S[],int D[]) { n=N_; for (int i=1; i<=n; i++) { ps[i]=ps[i-1]+P[i-1]; pss[i]=pss[i-1]+ps[i]; } for (int i=n; i>=1; i--) { ss[i]=ss[i+1]+P[i-1]; sss[i]=sss[i+1]+ss[i]; } ll ans=(ll)(1e18); int ret=0; for (int i=1; i<=n; i++) { if (ans>pss[i-1]+sss[i+1]) { ans=pss[i-1]+sss[i+1]; ret=i; } } return (ret-1); } // int main () { // ios::sync_with_stdio(false), cin.tie(0); // return 0; // }
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