제출 #778569

#제출 시각아이디문제언어결과실행 시간메모리
778569khshg커다란 상품 (IOI17_prize)C++14
90 / 100
89 ms11280 KiB
#include"prize.h" #include<bits/stdc++.h> using namespace std; vector<vector<int>> memo; vector<int> K(int i) { if(memo[i][0] != -1) return memo[i]; return ask(i); } int find_best(int N) { memo.resize(N, {-1, -1}); int i = 0; int mx = 0; for(; i < 473; ++i) { vector<int> e = K(i); int sum = e[0] + e[1]; if(!sum) return i; mx = max(mx, e[0] + e[1]); } while(true) { vector<int> e = K(i); int sum = e[0] + e[1]; if(!sum) return i; if(sum != mx) { ++i; continue; } int tl = i + 1, tr = N; while(tl < tr) { int tm = (tl + tr) / 2; vector<int> E = ask(tm); if(e == E) { tl = tm + 1; } else { tr = tm; } } i = tr; } }
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