Submission #149258

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149258샌즈뼈 (#200)Crosses on the Grid (FXCUP4_cross)C++17
0 / 100
6 ms384 KiB
#include "cross.h" #include <bits/stdc++.h> using namespace std; long long SelectCross(int K, std::vector<int> I, std::vector<int> O) { int N = I.size(); vector<pair<int, int>> v; for(int i=0; i<N; i++) v.emplace_back(I[i], O[i]); sort(v.rbegin(), v.rend()); //for(int i=0;i <N; i++) cout << v[i].first << ' '; cout << endl; //for(int i=0;i <N; i++) cout << v[i].second << ' '; cout << endl; priority_queue<int, vector<int>, greater<int>> s; for(int i=0; i<K-1; i++) { s.push(v[i].second); } long long res = 0; for(int i=K-1; i<N; i++) { int ii = v[i].first; int oo = s.size() ? min(s.top(), v[i].second) : v[i].second; // cout << oo << ' ' << ii << endl; res = max(res, 1LL*oo*oo - 1LL*(oo-ii)*(oo-ii)); if((int)s.size() > K-1) s.pop(); s.push(v[i].second); } return res; }
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