제출 #835386

#제출 시각아이디문제언어결과실행 시간메모리
835386aykhn버섯 세기 (IOI20_mushrooms)C++14
0 / 100
3 ms308 KiB
#include "mushrooms.h" #include<bits/stdc++.h> #define pb push_back using namespace std; const int BLOCK=150; vector<int>a, b; int count_mushrooms(int n) { a.pb(0); for(int i=1; i<min(n, 2*BLOCK); i++) { int cnt=use_machine({0, i}); if(cnt) b.pb(i); else a.pb(i); } if (n <= 2*BLOCK) return a.size(); if(a.size()>b.size()) { int ansb=b.size(); for(int i=2*BLOCK; i<n; i++) { vector<int>cur; int pos=0;int pi = i; for(int j=i; j<min(n, (int)(pi+a.size())); j++) { cur.pb(a[pos++]); cur.pb(j); i = j; } int ret=use_machine(cur); ansb+=(ret/2); } return n-ansb; } else { int ansa=a.size(); for(int i=2*BLOCK; i<n; i++) { vector<int>cur; int pos=0;int pi = i; for(int j=i; j<min(n, (int)(pi+b.size())); j++) { cur.pb(b[pos++]); cur.pb(j); i = j; } int ret=use_machine(cur); ansa+=(ret/2); } return ansa; }}
#Verdict Execution timeMemoryGrader output
Fetching results...