제출 #747524

#제출 시각아이디문제언어결과실행 시간메모리
747524vjudge1Kralj (COCI16_kralj)C++17
56 / 140
2077 ms47308 KiB
#include "bits/stdc++.h" #define ll long long using namespace std; const ll mod = 1000000007; vector<int> v[500001]; set<int> s; int ans; signed main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int n; cin >> n; int a[n], b[n], c[n], be[n] = {}, en[n] = {}; for(int i = 0; i < n; i++) { cin >> a[i]; be[a[i] - 1]++; } int x = 0; for(int i = 0; i < n; i++) { if(be[i]) { en[(i + be[i] - 1) % n]++; if(i + be[i] - 1 >= n) x++; } } int st = 0; for(int i = 0; i < n; i++) { x += (be[i] > 0); if(be[i] && x == 1) st = i; x -= en[i]; } for(int i = 0; i < n; i++) cin >> b[i]; for(int i = 0; i < n; i++) { cin >> c[i]; v[a[i] - 1].push_back(c[i]); } for(int i = 0; i < n; i++) { for(int j : v[st]) s.insert(j); auto it = s.upper_bound(b[st]); if(it != s.end()) { ans++; s.erase(it); } else s.erase(s.begin()); st++; st %= n; } cout << ans; return 0; }
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