제출 #124228

#제출 시각아이디문제언어결과실행 시간메모리
124228KieranHorgan코끼리 (Dancing Elephants) (IOI11_elephants)C++17
26 / 100
9033 ms2552 KiB
#include "elephants.h" #include <bits/stdc++.h> using namespace std; int n; vector<int> a; set<pair<int,int>> pos; int L; void init(int N, int L_, int X[]) { L = L_; n = N; a.resize(n); for(int i = 0; i < n; i++) { a[i] = X[i]; pos.insert({a[i], i}); } } int update(int i, int y) { pos.erase(make_pair(a[i], i)); a[i] = y; pos.insert(make_pair(a[i], i)); int mx = pos.rbegin()->first; int l = pos.begin()->first + L+1; int ans = 1; // cerr << l << " " << mx << endl; while(l <= mx) { l = pos.lower_bound(make_pair(l,0))->first + L + 1; // cerr << l << endl; ans++; } // cerr << L << endl; // for(auto x: pos) { // cerr << x.first << " " << x.second << endl; // } // cerr << endl; return ans; }
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