제출 #432441

#제출 시각아이디문제언어결과실행 시간메모리
432441MOUF_MAHMALAT비스킷 담기 (IOI20_biscuits)C++14
0 / 100
13 ms300 KiB
#include "biscuits.h" #include<bits/stdc++.h> using namespace std; typedef long long ll; vector<ll>a; ll x,n,dp[65],f[65]; ll best(ll d) { if(d==-1) return 1; ll &r=dp[d]; if(r!=-1) return r; r=best(d-1); ll c=0; for(ll i=d; i>=0; i--) { c+=a[i]/f[d-i]; if(c>=x) { return r+=best(i-1); } } return r; } long long count_tastiness(ll X, vector<ll> A) { x=X,a=A,n=61; if(f[0]==0) { f[0]=1; for(ll i=1;i<=60;i++) f[i]=f[i-1]*2; } a.resize(n); for(ll i=0; i<n; i++) { if(a[i]<x) continue; ll op=(a[i]-x)/2; a[i]-=op; if(i<n-1) a[i+1]+=op; } memset(dp,-1,sizeof dp); return best(n-1); }
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