제출 #407365

#제출 시각아이디문제언어결과실행 시간메모리
407365peuch커다란 상품 (IOI17_prize)C++17
0 / 100
125 ms6080 KiB
#include "prize.h" #include<bits/stdc++.h> using namespace std; int find_best(int n) { srand(time(0)); vector<vector<int> > a(n); int maxi = 0; vector<int> ord; for(int i = 0; i < n; i++) ord.push_back(i); random_shuffle(ord.begin(), ord.end()); for(int i : ord){ if(a[i].empty()) a[i] = ask(i); if(a[i][0] == 0 && a[i][1] == 0) return i; if(a[i][0] + a[i][1] > maxi) maxi = a[i][0] + a[i][1]; if(a[i][0] + a[i][1] == maxi){ int ini = i, fim = n - 1; bool flag = false; while(ini != fim){ int mid = (ini + fim) >> 1; if(ini == fim - 1) mid = fim; if(a[mid].empty()) a[mid] = ask(mid); if(a[mid][0] == 0 && a[mid][1] == 0) return mid; if(a[mid][0] + a[mid][1] > maxi){ maxi = a[mid][0] + a[mid][1]; flag = true; break; } if(a[mid][0] != a[i][0] || a[mid][1] != a[i][1]) fim = mid - 1; else ini = mid; } if(!flag) i = ini; } } return n - 1; }
#Verdict Execution timeMemoryGrader output
Fetching results...
#Verdict Execution timeMemoryGrader output
Fetching results...